Solve One Asset Dynamic Programming Problem (Vectorized)

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Contents

function result_map = ff_az_vf_vec(varargin)

FF_AZ_VF_VEC solve infinite horizon exo shock + endo asset problem

This program solves the infinite horizon dynamic single asset and single shock problem with vectorized codes. ff_az_vf shows looped codes. The solution is the same.

The vectorization takes advantage of implicit parallization that modern computers have when same instructions are given for different blocks of data With vectorization, we face a tradeoff between memory and speed. Suppose we have many shock points and many states points, if we build all states and choices into one single matrix and compute consumption, utility, etc over that entire matrix, that might be more efficient than computing consumption, utility, etc by subset of that matrix over a loop, but there is time required for generating that large input matrix, and if there are too many states, a computer could run out of memory.

The design philosophy here is that we vectorize the endogenous states and choices into matrixes, but do not include the exogeous states (shocks). The exogenous shocks remain looped. This means we can potentially have multiple shock variables discretized over a large number of shock states, and the computer would not run into memory problems. The speed gain from vectoring the rest of the problem conditional on shocks is very large compared to the pure looped version of the problem. Even if more memory is available, including the exogenous states in the vectorization process might not be speed improving.

Note one key issue is whether a programming language is row or column major depending on which, states should be rows or columns.

Another programming issue is the idea of broadcasting vs matrix algebra, both are used here. Since Matlab R2016b, matrix broadcasting has been allowed, which means the sum of a N by 1 and 1 by M is N by M. This is unrelated to matrix algebra. Matrix array broadcasting is very useful because it reduces the dimensionality of our model input state and choice and shock vectors, offering greater code clarity.

@param param_map container parameter container

@param support_map container support container

@param armt_map container container with states, choices and shocks grids that are inputs for grid based solution algorithm

@param func_map container container with function handles for consumption cash-on-hand etc.

@return result_map container contains policy function matrix, value function matrix, iteration results, and policy function, value function and iteration results tables.

keys included in result_map:

@example

  % Get Default Parameters
  it_param_set = 2;
  [param_map, support_map] = ffs_abz_set_default_param(it_param_set);
  % Change Keys in param_map
  param_map('it_a_n') = 500;
  param_map('it_z_n') = 11;
  param_map('fl_a_max') = 100;
  param_map('fl_w') = 1.3;
  % Change Keys support_map
  support_map('bl_display') = false;
  support_map('bl_post') = true;
  support_map('bl_display_final') = false;
  % Call Program with external parameters that override defaults.
  ff_az_vf_vec(param_map, support_map);

@include

@seealso

Default

it_param_set = 4;
bl_input_override = true;
[param_map, support_map] = ffs_az_set_default_param(it_param_set);

% Note: param_map and support_map can be adjusted here or outside to override defaults
% param_map('it_a_n') = 750;
% param_map('it_z_n') = 15;

[armt_map, func_map] = ffs_az_get_funcgrid(param_map, support_map, bl_input_override); % 1 for override
default_params = {param_map support_map armt_map func_map};

Parse Parameters 1

% if varargin only has param_map and support_map,
params_len = length(varargin);
[default_params{1:params_len}] = varargin{:};
param_map = [param_map; default_params{1}];
support_map = [support_map; default_params{2}];
if params_len >= 1 && params_len <= 2
    % If override param_map, re-generate armt and func if they are not
    % provided
    bl_input_override = true;
    [armt_map, func_map] = ffs_az_get_funcgrid(param_map, support_map, bl_input_override);
else
    % Override all
    armt_map = [armt_map; default_params{3}];
    func_map = [func_map; default_params{4}];
end

% append function name
st_func_name = 'ff_az_vf_vec';
support_map('st_profile_name_main') = [st_func_name support_map('st_profile_name_main')];
support_map('st_mat_name_main') = [st_func_name support_map('st_mat_name_main')];
support_map('st_img_name_main') = [st_func_name support_map('st_img_name_main')];

Parse Parameters 2

% armt_map
params_group = values(armt_map, {'ar_a', 'mt_z_trans', 'ar_z'});
[ar_a, mt_z_trans, ar_z] = params_group{:};
% func_map
params_group = values(func_map, {'f_util_log', 'f_util_crra', 'f_cons', 'f_coh'});
[f_util_log, f_util_crra, f_cons, f_coh] = params_group{:};
% param_map
params_group = values(param_map, {'it_a_n', 'it_z_n', 'fl_crra', 'fl_beta', 'fl_nan_replace'});
[it_a_n, it_z_n, fl_crra, fl_beta, fl_nan_replace] = params_group{:};
params_group = values(param_map, {'it_maxiter_val', 'fl_tol_val', 'fl_tol_pol', 'it_tol_pol_nochange'});
[it_maxiter_val, fl_tol_val, fl_tol_pol, it_tol_pol_nochange] = params_group{:};

% support_map
params_group = values(support_map, {'bl_profile', 'st_profile_path', ...
    'st_profile_prefix', 'st_profile_name_main', 'st_profile_suffix',...
    'bl_time', 'bl_display', 'it_display_every', 'bl_post'});
[bl_profile, st_profile_path, ...
    st_profile_prefix, st_profile_name_main, st_profile_suffix, ...
    bl_time, bl_display, it_display_every, bl_post] = params_group{:};

Initialize Output Matrixes

include mt_pol_idx which we did not have in looped code

mt_val_cur = zeros(length(ar_a),length(ar_z));
mt_val = mt_val_cur - 1;
mt_pol_a = zeros(length(ar_a),length(ar_z));
mt_pol_a_cur = mt_pol_a - 1;
mt_pol_idx = zeros(length(ar_a),length(ar_z));

Initialize Convergence Conditions

bl_vfi_continue = true;
it_iter = 0;
ar_val_diff_norm = zeros([it_maxiter_val, 1]);
ar_pol_diff_norm = zeros([it_maxiter_val, 1]);
mt_pol_perc_change = zeros([it_maxiter_val, it_z_n]);

Iterate Value Function

Loop solution with 4 nested loops

  1. loop 1: over exogenous states
  2. loop 2: over endogenous states
  3. loop 3: over choices
  4. loop 4: add future utility, integration--loop over future shocks
% Start Profile
if (bl_profile)
    close all;
    profile off;
    profile on;
end

% Start Timer
if (bl_time)
    tic;
end

% Value Function Iteration
while bl_vfi_continue
    it_iter = it_iter + 1;

Solve Optimization Problem Current Iteration

Only this segment of code differs between ff_az_vf and ff_az_vf_vec

    % loop 1: over exogenous states
    % incorporating these shocks into vectorization has high memory burden
    % but insignificant speed gains. Keeping this loop allows for large
    % number of shocks without overwhelming memory
    for it_z_i = 1:length(ar_z)

        % Current Shock
        fl_z = ar_z(it_z_i);

        % Consumption: fl_z = 1 by 1, ar_a = 1 by N, ar_a' = N by 1
        % mt_c is N by N: matrix broadcasting, expand to matrix from arrays
        mt_c = f_cons(fl_z, ar_a, ar_a');

        % EVAL current utility: N by N, f_util defined earlier
        if (fl_crra == 1)
            mt_utility = f_util_log(mt_c);
        else
            mt_utility = f_util_crra(mt_c);
        end

        % f(z'|z), 1 by Z
        ar_z_trans_condi = mt_z_trans(it_z_i,:);

        % EVAL EV((A',K'),Z'|Z) = V((A',K'),Z') x p(z'|z)', (N by Z) x (Z by 1) = N by 1
        % Note: transpose ar_z_trans_condi from 1 by Z to Z by 1
        % Note: matrix multiply not dot multiply
        mt_evzp_condi_z = mt_val_cur * ar_z_trans_condi';

        % EVAL add on future utility, N by N + N by 1, broadcast again
        mt_utility = mt_utility + fl_beta*mt_evzp_condi_z;
        mt_utility(mt_c <= 0) = fl_nan_replace;

        % Optimization: remember matlab is column major, rows must be
        % choices, columns must be states
        % <https://en.wikipedia.org/wiki/Row-_and_column-major_order COLUMN-MAJOR>
        % mt_utility is N by N, rows are choices, cols are states.
        [ar_opti_val1_z, ar_opti_idx_z] = max(mt_utility);
        mt_val(:,it_z_i) = ar_opti_val1_z;
        mt_pol_a(:,it_z_i) = ar_a(ar_opti_idx_z);
        if (it_iter == (it_maxiter_val + 1))
            mt_pol_idx(:,it_z_i) = ar_opti_idx_z;
        end
    end

Check Tolerance and Continuation

    % Difference across iterations
    ar_val_diff_norm(it_iter) = norm(mt_val - mt_val_cur);
    ar_pol_diff_norm(it_iter) = norm(mt_pol_a - mt_pol_a_cur);
    mt_pol_perc_change(it_iter, :) = sum((mt_pol_a ~= mt_pol_a_cur))/(it_a_n);

    % Update
    mt_val_cur = mt_val;
    mt_pol_a_cur = mt_pol_a;

    % Print Iteration Results
    if (bl_display && (rem(it_iter, it_display_every)==0))
        fprintf('VAL it_iter:%d, fl_diff:%d, fl_diff_pol:%d\n', ...
            it_iter, ar_val_diff_norm(it_iter), ar_pol_diff_norm(it_iter));
        tb_valpol_iter = array2table([mean(mt_val_cur,1); mean(mt_pol_a_cur,1); ...
            mt_val_cur(it_a_n,:); mt_pol_a_cur(it_a_n,:)]);
        tb_valpol_iter.Properties.VariableNames = strcat('z', string((1:size(mt_val_cur,2))));
        tb_valpol_iter.Properties.RowNames = {'mval', 'map', 'Hval', 'Hap'};
        disp('mval = mean(mt_val_cur,1), average value over a')
        disp('map  = mean(mt_pol_a_cur,1), average choice over a')
        disp('Hval = mt_val_cur(it_a_n,:), highest a state val')
        disp('Hap = mt_pol_a_cur(it_a_n,:), highest a state choice')
        disp(tb_valpol_iter);
    end

    % Continuation Conditions:
    % 1. if value function convergence criteria reached
    % 2. if policy function variation over iterations is less than
    % threshold
    if (it_iter == (it_maxiter_val + 1))
        bl_vfi_continue = false;
    elseif ((it_iter == it_maxiter_val) || ...
            (ar_val_diff_norm(it_iter) < fl_tol_val) || ...
            (sum(ar_pol_diff_norm(max(1, it_iter-it_tol_pol_nochange):it_iter)) < fl_tol_pol))
        % Fix to max, run again to save results if needed
        it_iter_last = it_iter;
        it_iter = it_maxiter_val;
    end
end

% End Timer
if (bl_time)
    toc;
end

% End Profile
if (bl_profile)
    profile off
    profile viewer
    st_file_name = [st_profile_prefix st_profile_name_main st_profile_suffix];
    profsave(profile('info'), strcat(st_profile_path, st_file_name));
end

Process Optimal Choices

for choices outcomes, store as cell with two elements, first element is the y(a,z), outcome given states, the second element will be solved found in ff_ds_vf and other distributions files. It stores what are the probability mass function of y, along with sorted unique values of y.

result_map = containers.Map('KeyType','char', 'ValueType','any');
result_map('mt_val') = mt_val;
result_map('mt_pol_idx') = mt_pol_idx;

result_map('cl_mt_pol_a') = {mt_pol_a, zeros(1)};
result_map('cl_mt_coh') = {f_coh(ar_z, ar_a'), zeros(1)};
result_map('cl_mt_pol_c') = {f_coh(ar_z, ar_a') - mt_pol_a, zeros(1)};
result_map('ar_st_pol_names') = ["mt_val", "cl_mt_pol_a", "cl_mt_coh", "cl_mt_pol_c"];

if (bl_post)
    bl_input_override = true;
    result_map('ar_val_diff_norm') = ar_val_diff_norm(1:it_iter_last);
    result_map('ar_pol_diff_norm') = ar_pol_diff_norm(1:it_iter_last);
    result_map('mt_pol_perc_change') = mt_pol_perc_change(1:it_iter_last, :);
    result_map = ff_az_vf_post(param_map, support_map, armt_map, func_map, result_map, bl_input_override);
end
valgap = norm(mt_val - mt_val_cur): value function difference across iterations
polgap = norm(mt_pol_a - mt_pol_a_cur): policy function difference across iterations
z1 = z1 perc change: sum((mt_pol_a ~= mt_pol_a_cur))/(it_a_n): percentage of state space points conditional on shock where the policy function is changing across iterations
                 valgap      polgap     z1_0_34741    z2_0_40076    z3_0_4623    z4_0_5333    z5_0_61519    z6_0_70966    z10_1_2567    z11_1_4496    z12_1_6723    z13_1_9291    z14_2_2253    z15_2_567
                ________    ________    __________    __________    _________    _________    __________    __________    __________    __________    __________    __________    __________    _________

    iter=1        163.75      106.07            1             1             1            1            1             1             1             1             1             1             1             1
    iter=2        124.31      1532.9        0.996         0.996         0.996        0.996      0.99733       0.99733             1             1             1             1             1             1
    iter=3        102.03      510.84        0.988       0.99067       0.99067      0.99067      0.99333         0.992       0.99733             1             1             1             1             1
    iter=4        86.034       255.3         0.98          0.98       0.98133      0.98267        0.984         0.984       0.99867       0.99867             1             1             1             1
    iter=5        73.685      152.77      0.96667       0.97067       0.96933        0.972      0.97467       0.97467         0.992         0.996       0.99867             1             1             1
    iter=6        63.774      101.47      0.95333       0.95467       0.95733      0.95867      0.96267       0.96533       0.98533       0.99067         0.996             1             1             1
    iter=7        55.621      72.103        0.936          0.94         0.944      0.94667      0.94667       0.95333       0.97467       0.98133         0.992       0.99733             1             1
    iter=8        48.798       53.69         0.92       0.92133         0.924      0.92933      0.93467       0.93867       0.96533       0.97467       0.98267       0.98933         0.996             1
    iter=9        43.012      41.353          0.9       0.90133       0.90533      0.90933        0.916       0.92133       0.95467       0.96533       0.97467         0.984         0.992       0.99467
    iter=10       38.059       32.75      0.87333       0.87867       0.88533      0.89067      0.89867           0.9       0.93733       0.94933       0.95867       0.96933       0.98267       0.99333
    iter=11       33.783      26.505      0.85467         0.856       0.86133      0.86533      0.87733       0.88533       0.92533       0.93467       0.94667       0.95733       0.97067       0.98267
    iter=12       30.068       21.79      0.82267       0.83067       0.83333        0.844      0.84933       0.85867       0.89333         0.912       0.92533       0.94667       0.95867       0.96667
    iter=13       26.824      18.165      0.80133       0.80533       0.80933      0.82267      0.82667       0.83333          0.88       0.89333       0.90933       0.91467       0.93067         0.952
    iter=14       23.979      15.333      0.77333       0.77867         0.784      0.78533      0.79467       0.80667       0.84933         0.868         0.884       0.89867         0.916       0.92933
    iter=15       21.472      13.055      0.73333       0.73733       0.74933      0.76133      0.76533       0.78133       0.82667       0.83867         0.852         0.876       0.89333         0.912
    iter=16       19.259      11.195      0.70667       0.70933       0.72133      0.72933      0.73867         0.744       0.79733         0.808       0.82667         0.844       0.86133         0.884
    iter=17       17.297      9.6488      0.67067       0.67467       0.67733      0.68933      0.69733       0.71067       0.76533          0.78         0.796       0.81467       0.83067         0.852
    iter=18       15.555      8.4101      0.63067       0.63333         0.652      0.65733      0.66933       0.67333       0.72667         0.744          0.76       0.78267       0.79867       0.82267
    iter=19       14.006      7.3437      0.58667       0.60533       0.60533      0.61467        0.628       0.63467       0.68933         0.704       0.72933         0.748       0.76667       0.78267
    iter=20       12.624       6.449      0.54933       0.55333       0.56533        0.576        0.588         0.596       0.65467         0.668         0.688       0.69867         0.732       0.74667
    iter=21        11.39      5.6505          0.5       0.50933          0.52      0.53067         0.54       0.54533       0.60133       0.62533       0.63733       0.66533       0.68267       0.70533
    iter=22       10.287      5.0083      0.46267       0.46533       0.47467      0.47733      0.49067       0.50933       0.56267       0.57467       0.59333       0.61867       0.63733       0.66667
    iter=23       9.3002      4.4887      0.40533          0.42       0.41867        0.436      0.44933       0.45867         0.508       0.53067         0.552       0.57467       0.59467       0.61333
    iter=24       8.4155      4.0328        0.356          0.36       0.37733      0.37733      0.38933       0.40267       0.45867         0.476       0.49867         0.516         0.544       0.56267
    iter=25       7.6221      3.5934      0.31333         0.312       0.32667      0.33467      0.34133         0.356       0.41333       0.42533       0.44667       0.46667         0.484         0.516
    iter=26         6.91      3.2085        0.272       0.27867       0.28133      0.30133        0.304       0.30933         0.356       0.37467         0.388       0.41067         0.428         0.452
    iter=27       6.2702      2.8585        0.236       0.24933       0.24667        0.248      0.26133         0.272       0.31867       0.33333       0.34533         0.364         0.384       0.40267
    iter=28       5.6953      2.5765      0.21467       0.21467       0.22133        0.228      0.24133         0.244       0.27867         0.296       0.30667       0.31867       0.34133       0.35867
    iter=29       5.1782       2.306        0.184         0.188       0.20133      0.20267      0.20267         0.212       0.24667         0.256       0.27333       0.29467       0.30267       0.32133
    iter=30       4.7129      2.0418         0.16         0.164       0.16267      0.17333      0.18133       0.18133       0.22267         0.228       0.24133       0.25333         0.264         0.288
    iter=31       4.2941      1.8115      0.14133       0.14933         0.156        0.156      0.16267       0.17067       0.19067           0.2       0.21067       0.21733       0.24267       0.24533
    iter=32       3.9168      1.6523      0.12933         0.128       0.12933      0.13333      0.13467       0.13867       0.17467       0.18267         0.192           0.2       0.20267       0.22533
    iter=33       3.5768      1.5041        0.108         0.112         0.112      0.11467        0.124       0.12667       0.14533         0.156          0.16       0.17733         0.192       0.19867
    iter=34       3.2703      1.4169     0.089333      0.093333       0.10667      0.10933      0.10933         0.116         0.136       0.13467         0.152       0.15467          0.16         0.176
    iter=35       2.9938      1.3063     0.085333      0.081333          0.08        0.096     0.093333         0.092         0.116       0.12533         0.128         0.136       0.14533       0.15333
    iter=36       2.7442      1.2085     0.073333      0.078667      0.073333     0.073333         0.08      0.082667       0.10133         0.108       0.11467       0.11867       0.13333       0.13467
    iter=37       2.5187      1.1046     0.058667      0.066667      0.066667     0.066667        0.072      0.073333      0.086667      0.093333           0.1       0.10667         0.108       0.12267
    iter=38       2.3149      0.9803     0.053333      0.050667      0.062667     0.058667     0.061333      0.066667          0.08         0.084      0.090667           0.1      0.098667       0.11067
    iter=39       2.1305     0.77536        0.044      0.045333      0.046667     0.053333        0.056      0.053333      0.065333      0.074667         0.072      0.074667         0.088      0.085333
    iter=40       1.9634     0.74607     0.041333      0.042667      0.037333     0.042667     0.041333         0.044      0.057333          0.06         0.064      0.069333          0.08      0.078667
    iter=41       1.8119       0.714         0.04         0.032      0.034667     0.041333     0.038667      0.046667         0.052      0.053333          0.06         0.064      0.061333      0.073333
    iter=42       1.6744     0.61466     0.025333      0.034667      0.034667        0.028     0.034667      0.030667      0.042667      0.045333         0.048         0.056      0.057333      0.062667
    iter=43       1.5494     0.57239        0.024         0.028      0.026667        0.028     0.030667      0.033333      0.038667          0.04      0.050667      0.046667         0.052         0.056
    iter=44       1.4355     0.51494        0.016      0.022667      0.022667     0.022667     0.025333         0.028      0.034667         0.036         0.036      0.042667      0.042667         0.044
    iter=45       1.3316     0.50433        0.016      0.018667          0.02     0.021333         0.02      0.025333      0.025333      0.029333         0.024         0.032      0.041333          0.04
    iter=46       1.2367     0.40288     0.018667      0.013333      0.017333     0.017333         0.02      0.017333         0.028      0.022667         0.028      0.029333      0.026667      0.038667
    iter=47       1.1498     0.38952     0.014667     0.0093333      0.013333        0.016        0.016      0.013333          0.02         0.028         0.024      0.025333      0.033333      0.025333
    iter=48       1.0701     0.33652     0.010667         0.012      0.014667     0.013333     0.018667      0.010667         0.016      0.018667      0.021333      0.021333          0.02      0.029333
    iter=49      0.99696     0.28366        0.004     0.0093333         0.008    0.0066667    0.0053333         0.012         0.012         0.012         0.016         0.016          0.02      0.018667
    iter=50      0.92962     0.29039     0.010667         0.008         0.008     0.010667        0.008         0.008      0.010667      0.017333      0.013333         0.016         0.016         0.024
    iter=56      0.62025     0.22154        0.004     0.0013333     0.0013333    0.0026667    0.0013333     0.0026667         0.004     0.0026667      0.010667     0.0066667     0.0066667     0.0066667
    iter=57      0.58092     0.14927    0.0013333     0.0026667         0.004            0    0.0026667     0.0026667     0.0053333     0.0066667             0         0.004     0.0053333         0.004
    iter=58       0.5443     0.16352    0.0026667     0.0013333     0.0013333    0.0013333        0.004             0     0.0026667     0.0013333     0.0026667     0.0053333         0.008         0.004
    iter=59      0.51018     0.13847            0             0     0.0013333    0.0026667        0.004     0.0026667     0.0013333     0.0026667         0.004     0.0026667     0.0026667     0.0013333
    iter=60      0.47836     0.14346    0.0013333             0         0.004    0.0013333            0     0.0013333         0.004     0.0013333     0.0026667         0.004     0.0013333     0.0053333
    iter=61      0.44865     0.13351    0.0013333     0.0053333             0    0.0013333    0.0013333     0.0026667     0.0013333     0.0013333         0.004     0.0026667             0     0.0053333
    iter=62      0.42089     0.13847    0.0013333     0.0026667             0    0.0013333            0             0     0.0026667     0.0013333             0     0.0053333     0.0026667             0
    iter=63      0.39494     0.11562            0             0             0    0.0013333            0     0.0013333             0     0.0026667     0.0026667             0     0.0026667     0.0013333
    iter=64      0.37067    0.066756    0.0013333             0             0    0.0013333            0     0.0013333     0.0013333             0     0.0013333     0.0013333     0.0013333     0.0013333
    iter=65      0.34796    0.094407            0             0     0.0026667    0.0026667            0             0             0     0.0013333             0             0             0     0.0013333
    iter=66      0.32668    0.094407            0             0             0            0            0             0             0     0.0026667     0.0013333             0     0.0013333     0.0013333
    iter=67      0.30676    0.066756            0             0     0.0013333            0            0     0.0013333     0.0013333             0             0             0             0             0
    iter=68      0.28808    0.066756            0             0             0    0.0013333    0.0013333             0             0             0     0.0013333             0     0.0013333     0.0013333
    iter=69      0.27057    0.066756            0             0             0            0    0.0013333             0     0.0013333             0             0     0.0013333     0.0013333             0
    iter=70      0.25415    0.066756            0             0             0            0            0             0     0.0013333             0             0             0             0             0
    iter=71      0.23875    0.066756            0             0             0            0            0             0             0             0     0.0013333             0             0     0.0013333
    iter=72      0.22429    0.066756            0             0             0            0            0             0     0.0013333             0             0             0             0             0
    iter=73      0.21073    0.066756            0             0             0    0.0013333            0             0             0             0             0             0     0.0013333             0
    iter=74        0.198    0.066756            0             0             0            0            0     0.0013333             0     0.0013333             0             0             0     0.0013333
    iter=75      0.18605           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=76      0.17483           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=77      0.16429    0.066756            0             0             0            0            0             0             0             0             0     0.0013333             0             0
    iter=78      0.15439    0.066756            0             0             0            0            0             0             0             0             0     0.0013333             0             0
    iter=79      0.14509    0.066756            0             0             0            0            0             0             0             0             0             0     0.0013333             0
    iter=80      0.13636           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=81      0.12815           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=82      0.12044           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=83       0.1132           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=84       0.1064           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=85          0.1           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=86     0.093993           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=87     0.088346           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=88     0.083039           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=89     0.078052           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=90     0.073365           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=91     0.068959           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=92     0.064819           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=93     0.060927           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=94      0.05727           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=95     0.053832           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=96     0.050601           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=97     0.047563           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=98     0.044709           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=99     0.042025           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=100    0.039503           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=101    0.037133           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=102    0.034904           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=103     0.03281           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=104    0.030841           0            0             0             0            0            0             0             0             0             0             0             0             0
    iter=105     0.02899           0            0             0             0            0            0             0             0             0             0             0             0             0

tb_val: V(a,z) value at each state space point
                    z1_0_34741    z2_0_40076    z3_0_4623    z4_0_5333    z5_0_61519    z6_0_70966    z10_1_2567    z11_1_4496    z12_1_6723    z13_1_9291    z14_2_2253    z15_2_567
                    __________    __________    _________    _________    __________    __________    __________    __________    __________    __________    __________    _________

    a1=0               -1.496      -0.85738      -0.20677      0.4326        1.051        1.6461         3.834        4.3533         4.868        5.3788        5.8799       6.3576  
    a2=0.0667557      -1.2889      -0.68792     -0.068348     0.54551        1.143         1.721        3.8742        4.3894        4.9006        5.4083        5.9069       6.3825  
    a3=0.133511       -1.1195      -0.54598      0.050085     0.64396       1.2251        1.7912        3.9139        4.4251         4.933        5.4377        5.9338       6.4073  
    a4=0.200267      -0.96773      -0.41407       0.16308     0.74017       1.3064        1.8584        3.9533        4.4604        4.9651        5.4669        5.9606       6.4319  
    a5=0.267023      -0.82642      -0.29338       0.26557     0.82676       1.3813         1.924        3.9925        4.4955         4.997        5.4959        5.9872       6.4564  
    a6=0.333778      -0.69878      -0.18077        0.3638     0.91224       1.4539        1.9876        4.0313        4.5305        5.0287        5.5248        6.0136       6.4809  
    a7=0.400534      -0.57856     -0.074032       0.45817     0.99503       1.5263        2.0483        4.0696        4.5651        5.0602        5.5536          6.04       6.5052  
    a8=0.46729       -0.45992      0.029893       0.54774      1.0717       1.5944        2.1088        4.1075        4.5995        5.0915        5.5823        6.0663       6.5295  
    a9=0.534045      -0.35088       0.12737       0.63413      1.1482       1.6607        2.1681        4.1449        4.6335        5.1225        5.6108        6.0925       6.5537  
    a10=0.600801     -0.24733       0.22021       0.71739      1.2225       1.7257         2.226        4.1821        4.6674        5.1534        5.6391        6.1185       6.5778  
    a11=0.667557     -0.14534       0.31092       0.79796      1.2948       1.7903        2.2822        4.2189         4.701        5.1841        5.6672        6.1444       6.6018  
    a12=0.734312    -0.048003       0.39986       0.87689      1.3637       1.8524        2.3374        4.2554        4.7343        5.2145        5.6952        6.1702       6.6257  
    a13=0.801068     0.046006       0.48497       0.95338      1.4319       1.9133        2.3921        4.2916        4.7675        5.2448        5.7231        6.1959       6.6494  
    a14=0.867824      0.13615       0.56673        1.0277      1.4991       1.9727        2.4461        4.3278        4.8003        5.2749        5.7508        6.2214       6.6731  
    a15=0.934579      0.22501       0.64659        1.0996      1.5645       2.0312         2.499        4.3636        4.8329        5.3049        5.7783        6.2469       6.6967  
    a16=1.00134        0.3102       0.72515        1.1699      1.6285       2.0894        2.5509        4.3991        4.8653        5.3348        5.8057        6.2722       6.7201  
    a17=1.06809        0.3935       0.80188          1.24      1.6907       2.1461        2.6021        4.4343        4.8976        5.3644        5.8329        6.2974       6.7435  
    a18=1.13485       0.47421       0.87628         1.308      1.7519       2.2019        2.6524        4.4692        4.9297        5.3939        5.8601        6.3225       6.7668  
    a19=1.2016        0.55339       0.94865        1.3745      1.8127       2.2566        2.7021        4.5038        4.9615        5.4232         5.887        6.3475         6.79  
    a20=1.26836       0.63134        1.0195        1.4394      1.8723       2.3104        2.7515        4.5382        4.9931        5.4523        5.9139        6.3723        6.813  
    a21=1.33511       0.70675        1.0896        1.5027      1.9307       2.3634        2.8003        4.5722        5.0245        5.4813        5.9407         6.397        6.836  
    a22=1.40187       0.78048        1.1581        1.5655      1.9881       2.4162        2.8482         4.606        5.0558        5.5101        5.9674        6.4216       6.8589  
    a23=1.46862       0.85238        1.2252        1.6276      2.0443        2.468        2.8955        4.6396        5.0868        5.5387        5.9939        6.4462       6.8817  
    a24=1.53538       0.92293         1.291        1.6885      2.0996       2.5191        2.9422         4.673        5.1176        5.5672        6.0203        6.4706       6.9045  
    a25=1.60214       0.99302        1.3552        1.7481      2.1547       2.5695        2.9885        4.7063        5.1483        5.5956        6.0466         6.495       6.9271  
    a26=1.66889        1.0615        1.4184        1.8067      2.2091       2.6192         3.034        4.7393        5.1787        5.6237        6.0727        6.5193       6.9497  
    a27=1.73565        1.1286        1.4813        1.8643      2.2626       2.6682        3.0793        4.7722         5.209        5.6517        6.0987        6.5435       6.9723  
    a28=1.8024         1.1944         1.543        1.9208      2.3151       2.7166        3.1243        4.8048        5.2391        5.6797        6.1246        6.5675       6.9947  
    a29=1.86916        1.2588        1.6034        1.9772      2.3671       2.7646        3.1687        4.8371        5.2691        5.7075        6.1504        6.5915        7.017  
    a30=1.93591        1.3221         1.663        2.0328      2.4182       2.8122        3.2125        4.8693        5.2989        5.7351         6.176        6.6153       7.0393  
    a31=2.00267        1.3847        1.7215        2.0876      2.4686       2.8592         3.256        4.9013        5.3286        5.7626        6.2016        6.6391       7.0615  
    a32=2.06943        1.4466         1.779        2.1414      2.5185       2.9057        3.2989         4.933        5.3581          5.79         6.227        6.6628       7.0836  
    a33=2.13618        1.5075        1.8357        2.1946      2.5682       2.9515        3.3413        4.9645        5.3874        5.8173        6.2522        6.6863       7.1056  
    a34=2.20294        1.5674        1.8923        2.2469      2.6172       2.9969        3.3834        4.9958        5.4165        5.8444        6.2774        6.7098       7.1275  
    a35=2.26969        1.6263        1.9479        2.2986      2.6656       3.0417        3.4251        5.0269        5.4455        5.8714        6.3025        6.7332       7.1493  
    a36=2.33645        1.6844        2.0028        2.3496      2.7133       3.0861        3.4665        5.0578        5.4744        5.8982        6.3275        6.7565       7.1711  
    a37=2.4032         1.7414        2.0567        2.4003      2.7606       3.1301        3.5077        5.0886        5.5031        5.9249        6.3524        6.7796       7.1928  
    a38=2.46996        1.7977        2.1101        2.4506      2.8073       3.1738        3.5485        5.1193        5.5316        5.9515        6.3772        6.8027       7.2144  
    a39=2.53672        1.8538        2.1627        2.5002      2.8535       3.2171        3.5888        5.1499          5.56        5.9779        6.4019        6.8257       7.2359  
    a40=2.60347         1.909        2.2145        2.5491       2.899         3.26        3.6288        5.1802        5.5882        6.0043        6.4265        6.8486       7.2573  
    a41=2.67023        1.9635        2.2657        2.5974      2.9444       3.3025        3.6685        5.2103        5.6163        6.0305         6.451        6.8714       7.2787  
    a42=2.73698        2.0173        2.3167        2.6452      2.9895       3.3445        3.7077        5.2403        5.6442        6.0565        6.4753        6.8942          7.3  
    a43=2.80374        2.0703        2.3672        2.6925       3.034       3.3861        3.7466        5.2701         5.672        6.0825        6.4996        6.9169       7.3212  
    a44=2.87049        2.1228        2.4171        2.7392      3.0781       3.4273        3.7853        5.2997        5.6997        6.1084        6.5238        6.9395       7.3423  
    a45=2.93725        2.1745        2.4663        2.7854      3.1217       3.4682        3.8236        5.3292        5.7273        6.1342        6.5478         6.962       7.3635  
    a46=3.00401        2.2255        2.5149        2.8315      3.1649       3.5088        3.8616        5.3585        5.7548        6.1598        6.5718        6.9845       7.3845  
    a47=3.07076        2.2762         2.563        2.8771      3.2077       3.5489        3.8994        5.3876        5.7821        6.1854        6.5957        7.0068       7.4055  
    a48=3.13752        2.3265        2.6105        2.9222      3.2501       3.5889         3.937        5.4166        5.8092        6.2108        6.6194         7.029       7.4264  
    a49=3.20427        2.3762        2.6576        2.9669      3.2921       3.6286        3.9744        5.4454        5.8362        6.2361        6.6431        7.0512       7.4472  
    a50=3.27103        2.4254        2.7041        3.0111      3.3337        3.668        4.0114         5.474        5.8631        6.2613        6.6666        7.0733       7.4679  
    a701=46.729        13.458        13.509        13.568      13.632         13.7        13.774        14.124        14.227        14.338        14.455        14.577         14.7  
    a702=46.7957       13.466        13.517        13.576      13.639       13.708        13.782        14.131        14.234        14.345        14.462        14.584       14.707  
    a703=46.8625       13.474        13.525        13.584      13.647       13.716        13.789        14.138        14.241        14.351        14.468         14.59       14.713  
    a704=46.9292       13.482        13.533        13.591      13.655       13.724        13.797        14.145        14.248        14.358        14.475        14.597        14.72  
    a705=46.996         13.49        13.541        13.599      13.663       13.731        13.805        14.153        14.255        14.365        14.482        14.604       14.726  
    a706=47.0628       13.498        13.549        13.607      13.671       13.739        13.812         14.16        14.263        14.372        14.489         14.61       14.733  
    a707=47.1295       13.506        13.557        13.615      13.678       13.747         13.82        14.167         14.27        14.379        14.496        14.617       14.739  
    a708=47.1963       13.514        13.565        13.623      13.686       13.754        13.827        14.174        14.277        14.386        14.502        14.624       14.746  
    a709=47.263        13.522        13.573        13.631      13.694       13.762        13.835        14.181        14.284        14.393        14.509         14.63       14.752  
    a710=47.3298        13.53        13.581        13.638      13.702        13.77        13.842        14.188        14.291          14.4        14.516        14.637       14.759  
    a711=47.3965       13.537        13.588        13.646      13.709       13.777         13.85        14.196        14.298        14.407        14.523        14.643       14.765  
    a712=47.4633       13.545        13.596        13.654      13.717       13.785        13.858        14.203        14.305        14.414        14.529         14.65       14.771  
    a713=47.53         13.553        13.604        13.662      13.725       13.793        13.865         14.21        14.312         14.42        14.536        14.657       14.778  
    a714=47.5968       13.561        13.612         13.67      13.732         13.8        13.873        14.217        14.319        14.427        14.543        14.663       14.784  
    a715=47.6636       13.569         13.62        13.677       13.74       13.808         13.88        14.224        14.326        14.434        14.549         14.67       14.791  
    a716=47.7303       13.577        13.628        13.685      13.748       13.815        13.888        14.231        14.333        14.441        14.556        14.676       14.797  
    a717=47.7971       13.585        13.636        13.693      13.756       13.823        13.895        14.238         14.34        14.448        14.563        14.683       14.804  
    a718=47.8638       13.593        13.643        13.701      13.763        13.83        13.903        14.245        14.346        14.455         14.57        14.689        14.81  
    a719=47.9306       13.601        13.651        13.708      13.771       13.838         13.91        14.252        14.353        14.461        14.576        14.696       14.817  
    a720=47.9973       13.609        13.659        13.716      13.778       13.846        13.917        14.259         14.36        14.468        14.583        14.703       14.823  
    a721=48.0641       13.616        13.667        13.724      13.786       13.853        13.925        14.266        14.367        14.475         14.59        14.709       14.829  
    a722=48.1308       13.624        13.674        13.731      13.794       13.861        13.932        14.273        14.374        14.482        14.596        14.716       14.836  
    a723=48.1976       13.632        13.682        13.739      13.801       13.868         13.94         14.28        14.381        14.489        14.603        14.722       14.842  
    a724=48.2644        13.64         13.69        13.747      13.809       13.876        13.947        14.287        14.388        14.495         14.61        14.729       14.848  
    a725=48.3311       13.648        13.698        13.754      13.816       13.883        13.955        14.294        14.395        14.502        14.616        14.735       14.855  
    a726=48.3979       13.655        13.705        13.762      13.824       13.891        13.962        14.301        14.402        14.509        14.623        14.742       14.861  
    a727=48.4646       13.663        13.713         13.77      13.832       13.898        13.969        14.308        14.409        14.516        14.629        14.748       14.868  
    a728=48.5314       13.671        13.721        13.777      13.839       13.906        13.977        14.315        14.415        14.522        14.636        14.755       14.874  
    a729=48.5981       13.679        13.729        13.785      13.847       13.913        13.984        14.322        14.422        14.529        14.643        14.761        14.88  
    a730=48.6649       13.687        13.736        13.793      13.854       13.921        13.992        14.329        14.429        14.536        14.649        14.768       14.887  
    a731=48.7316       13.694        13.744          13.8      13.862       13.928        13.999        14.336        14.436        14.543        14.656        14.774       14.893  
    a732=48.7984       13.702        13.752        13.808      13.869       13.935        14.006        14.343        14.443        14.549        14.662         14.78       14.899  
    a733=48.8652        13.71        13.759        13.815      13.877       13.943        14.014         14.35         14.45        14.556        14.669        14.787       14.906  
    a734=48.9319       13.717        13.767        13.823      13.884        13.95        14.021        14.357        14.457        14.563        14.676        14.793       14.912  
    a735=48.9987       13.725        13.775        13.831      13.892       13.958        14.028        14.364        14.463        14.569        14.682          14.8       14.918  
    a736=49.0654       13.733        13.782        13.838      13.899       13.965        14.036        14.371         14.47        14.576        14.689        14.806       14.924  
    a737=49.1322        13.74         13.79        13.846      13.907       13.973        14.043        14.378        14.477        14.583        14.695        14.813       14.931  
    a738=49.1989       13.748        13.797        13.853      13.914        13.98         14.05        14.385        14.484        14.589        14.702        14.819       14.937  
    a739=49.2657       13.756        13.805        13.861      13.922       13.987        14.058        14.392        14.491        14.596        14.708        14.825       14.943  
    a740=49.3324       13.763        13.813        13.868      13.929       13.995        14.065        14.399        14.497        14.603        14.715        14.832        14.95  
    a741=49.3992       13.771         13.82        13.876      13.937       14.002        14.072        14.405        14.504        14.609        14.721        14.838       14.956  
    a742=49.466        13.779        13.828        13.883      13.944       14.009        14.079        14.412        14.511        14.616        14.728        14.845       14.962  
    a743=49.5327       13.786        13.835        13.891      13.952       14.017        14.087        14.419        14.518        14.623        14.734        14.851       14.968  
    a744=49.5995       13.794        13.843        13.898      13.959       14.024        14.094        14.426        14.524        14.629        14.741        14.857       14.975  
    a745=49.6662       13.802         13.85        13.906      13.966       14.031        14.101        14.433        14.531        14.636        14.747        14.864       14.981  
    a746=49.733        13.809        13.858        13.913      13.974       14.039        14.108         14.44        14.538        14.643        14.754         14.87       14.987  
    a747=49.7997       13.817        13.866        13.921      13.981       14.046        14.116        14.447        14.544        14.649         14.76        14.876       14.993  
    a748=49.8665       13.824        13.873        13.928      13.988       14.053        14.123        14.453        14.551        14.656        14.767        14.883       14.999  
    a749=49.9332       13.832        13.881        13.936      13.996       14.061         14.13         14.46        14.558        14.662        14.773        14.889       15.006  
    a750=50             13.84        13.888        13.943      14.003       14.068        14.137        14.467        14.565        14.669         14.78        14.895       15.012  

tb_pol_a: optimal asset choice for each state space point
                    z1_0_34741    z2_0_40076    z3_0_4623    z4_0_5333    z5_0_61519    z6_0_70966    z10_1_2567    z11_1_4496    z12_1_6723    z13_1_9291    z14_2_2253    z15_2_567
                    __________    __________    _________    _________    __________    __________    __________    __________    __________    __________    __________    _________

    a1=0                    0             0            0            0             0             0      0.20027       0.33378       0.53405       0.73431        1.0013       1.3351  
    a2=0.0667557            0             0            0            0             0             0      0.26702       0.40053       0.53405       0.80107        1.0681       1.4019  
    a3=0.133511             0             0            0            0      0.066756      0.066756      0.33378       0.46729        0.6008       0.86782        1.1348       1.4686  
    a4=0.200267      0.066756      0.066756     0.066756     0.066756      0.066756      0.066756      0.33378       0.53405       0.66756       0.93458        1.2016       1.5354  
    a5=0.267023      0.066756      0.066756     0.066756     0.066756       0.13351       0.13351      0.40053       0.53405       0.73431        1.0013        1.2684       1.6021  
    a6=0.333778       0.13351       0.13351      0.13351      0.13351       0.20027       0.20027      0.46729        0.6008       0.80107        1.0013        1.3351       1.6689  
    a7=0.400534       0.13351       0.20027      0.20027      0.20027       0.20027       0.26702      0.53405       0.66756       0.86782        1.0681        1.3351       1.7356  
    a8=0.46729        0.20027       0.20027      0.20027      0.20027       0.26702       0.26702       0.6008       0.73431       0.93458        1.1348        1.4019       1.7356  
    a9=0.534045       0.26702       0.26702      0.26702      0.26702       0.33378       0.33378      0.66756       0.80107        1.0013        1.2016        1.4686       1.8024  
    a10=0.600801      0.26702       0.33378      0.33378      0.33378       0.33378       0.40053      0.73431       0.86782        1.0681        1.2684        1.5354       1.8692  
    a11=0.667557      0.33378       0.33378      0.40053      0.40053       0.40053       0.46729      0.80107       0.93458        1.1348        1.3351        1.6021       1.9359  
    a12=0.734312      0.40053       0.40053      0.40053      0.46729       0.46729       0.53405      0.86782        1.0013        1.2016        1.4019        1.6689       2.0027  
    a13=0.801068      0.46729       0.46729      0.46729      0.46729       0.53405       0.53405      0.86782        1.0681        1.2684        1.4686        1.7356       2.0694  
    a14=0.867824      0.46729       0.53405      0.53405      0.53405        0.6008        0.6008      0.93458        1.1348        1.2684        1.5354        1.8024       2.1362  
    a15=0.934579      0.53405       0.53405       0.6008       0.6008        0.6008       0.66756       1.0013        1.2016        1.3351        1.6021        1.8692       2.2029  
    a16=1.00134        0.6008        0.6008      0.66756      0.66756       0.66756       0.73431       1.0681        1.2016        1.4019        1.6689        1.9359       2.2697  
    a17=1.06809       0.66756       0.66756      0.66756      0.73431       0.73431       0.80107       1.1348        1.2684        1.4686        1.7356        2.0027       2.3364  
    a18=1.13485       0.73431       0.73431      0.73431      0.73431       0.80107       0.86782       1.2016        1.3351        1.5354        1.8024        2.0694       2.4032  
    a19=1.2016        0.73431       0.80107      0.80107      0.80107       0.86782       0.86782       1.2684        1.4019        1.6021        1.8692        2.1362         2.47  
    a20=1.26836       0.80107       0.80107      0.86782      0.86782       0.93458       0.93458       1.3351        1.4686        1.6689        1.9359        2.2029       2.5367  
    a21=1.33511       0.86782       0.86782      0.93458      0.93458        1.0013        1.0013       1.4019        1.5354        1.7356        1.9359        2.2697       2.6035  
    a22=1.40187       0.93458       0.93458      0.93458       1.0013        1.0013        1.0681       1.4686        1.6021        1.8024        2.0027        2.3364       2.6702  
    a23=1.46862        1.0013        1.0013       1.0013       1.0681        1.0681        1.1348       1.5354        1.6689        1.8692        2.0694        2.4032        2.737  
    a24=1.53538        1.0681        1.0681       1.0681       1.1348        1.1348        1.2016       1.5354        1.7356        1.9359        2.1362        2.4032       2.8037  
    a25=1.60214        1.0681        1.1348       1.1348       1.1348        1.2016        1.2684       1.6021        1.8024        2.0027        2.2029          2.47       2.8037  
    a26=1.66889        1.1348        1.1348       1.2016       1.2016        1.2684        1.3351       1.6689        1.8692        2.0694        2.2697        2.5367       2.8705  
    a27=1.73565        1.2016        1.2016       1.2684       1.2684        1.3351        1.3351       1.7356        1.9359        2.1362        2.3364        2.6035       2.9372  
    a28=1.8024         1.2684        1.2684       1.3351       1.3351        1.4019        1.4019       1.8024        2.0027        2.1362        2.4032        2.6702        3.004  
    a29=1.86916        1.3351        1.3351       1.3351       1.4019        1.4019        1.4686       1.8692        2.0027        2.2029          2.47         2.737       3.0708  
    a30=1.93591        1.4019        1.4019       1.4019       1.4686        1.4686        1.5354       1.9359        2.0694        2.2697        2.5367        2.8037       3.1375  
    a31=2.00267        1.4019        1.4686       1.4686       1.5354        1.5354        1.6021       2.0027        2.1362        2.3364        2.6035        2.8705       3.2043  
    a32=2.06943        1.4686        1.5354       1.5354       1.5354        1.6021        1.6689       2.0694        2.2029        2.4032        2.6702        2.9372        3.271  
    a33=2.13618        1.5354        1.5354       1.6021       1.6021        1.6689        1.7356       2.1362        2.2697          2.47         2.737         3.004       3.3378  
    a34=2.20294        1.6021        1.6021       1.6689       1.6689        1.7356        1.8024       2.2029        2.3364        2.5367        2.8037        3.0708       3.4045  
    a35=2.26969        1.6689        1.6689       1.7356       1.7356        1.8024        1.8692       2.2697        2.4032        2.6035        2.8705        3.1375       3.4713  
    a36=2.33645        1.7356        1.7356       1.7356       1.8024        1.8692        1.8692       2.2697          2.47        2.6702        2.9372        3.2043       3.5381  
    a37=2.4032         1.8024        1.8024       1.8024       1.8692        1.9359        1.9359       2.3364        2.5367         2.737        2.9372         3.271       3.6048  
    a38=2.46996        1.8024        1.8692       1.8692       1.9359        1.9359        2.0027       2.4032        2.6035        2.8037         3.004        3.3378       3.6716  
    a39=2.53672        1.8692        1.9359       1.9359       2.0027        2.0027        2.0694         2.47        2.6702        2.8705        3.0708        3.4045       3.7383  
    a40=2.60347        1.9359        2.0027       2.0027       2.0694        2.0694        2.1362       2.5367         2.737        2.9372        3.1375        3.4713       3.8051  
    a41=2.67023        2.0027        2.0027       2.0694       2.0694        2.1362        2.2029       2.6035        2.8037         3.004        3.2043        3.4713       3.8718  
    a42=2.73698        2.0694        2.0694       2.1362       2.1362        2.2029        2.2697       2.6702        2.8705        3.0708         3.271        3.5381       3.9386  
    a43=2.80374        2.1362        2.1362       2.2029       2.2029        2.2697        2.3364        2.737        2.9372        3.0708        3.3378        3.6048       4.0053  
    a44=2.87049        2.2029        2.2029       2.2697       2.2697        2.3364        2.4032       2.8037        2.9372        3.1375        3.4045        3.6716       4.0721  
    a45=2.93725        2.2697        2.2697       2.2697       2.3364        2.4032          2.47       2.8705         3.004        3.2043        3.4713        3.7383       4.0721  
    a46=3.00401        2.3364        2.3364       2.3364       2.4032          2.47        2.5367       2.9372        3.0708         3.271        3.5381        3.8051       4.1389  
    a47=3.07076        2.3364        2.4032       2.4032         2.47        2.5367        2.5367        3.004        3.1375        3.3378        3.6048        3.8718       4.2056  
    a48=3.13752        2.4032          2.47         2.47       2.5367        2.5367        2.6035       3.0708        3.2043        3.4045        3.6716        3.9386       4.2724  
    a49=3.20427          2.47        2.5367       2.5367       2.6035        2.6035        2.6702       3.1375         3.271        3.4713        3.7383        4.0053       4.3391  
    a50=3.27103        2.5367        2.5367       2.6035       2.6702        2.6702         2.737       3.2043        3.3378        3.5381        3.8051        4.0721       4.4059  
    a701=46.729        44.192        44.192       44.259       44.326        44.393        44.526       44.993        45.194        45.461        45.728        46.061       46.395  
    a702=46.7957       44.259        44.259       44.326       44.393        44.459        44.526        45.06         45.26        45.527        45.794        46.061       46.462  
    a703=46.8625       44.326        44.326       44.393       44.459        44.526        44.593       45.127        45.327        45.594        45.861        46.128       46.529  
    a704=46.9292       44.393        44.393       44.459       44.526        44.593         44.66       45.194        45.394        45.661        45.928        46.195       46.595  
    a705=46.996        44.459        44.459       44.526       44.593         44.66        44.726        45.26        45.461        45.728        45.995        46.262       46.662  
    a706=47.0628       44.526        44.526       44.593        44.66        44.726        44.793       45.327        45.527        45.794        46.061        46.328       46.729  
    a707=47.1295       44.593        44.593        44.66       44.726        44.793         44.86       45.394        45.594        45.861        46.128        46.395       46.796  
    a708=47.1963        44.66         44.66       44.726       44.793         44.86        44.927       45.461        45.661        45.928        46.195        46.462       46.862  
    a709=47.263        44.726        44.726       44.793        44.86        44.927        44.993       45.527        45.728        45.995        46.262        46.529       46.929  
    a710=47.3298       44.726        44.793        44.86       44.927        44.993         45.06       45.594        45.794        46.061        46.328        46.595       46.996  
    a711=47.3965       44.793         44.86       44.927       44.993         45.06        45.127       45.661        45.861        46.061        46.395        46.662       47.063  
    a712=47.4633        44.86        44.927       44.993        45.06        45.127        45.194       45.728        45.928        46.128        46.395        46.729        47.13  
    a713=47.53         44.927        44.993        45.06       45.127        45.194         45.26       45.794        45.995        46.195        46.462        46.796       47.196  
    a714=47.5968       44.993         45.06       45.127       45.194         45.26        45.327       45.861        46.061        46.262        46.529        46.862       47.263  
    a715=47.6636        45.06        45.127       45.194        45.26        45.327        45.394       45.928        46.128        46.328        46.595        46.929        47.33  
    a716=47.7303       45.127        45.194        45.26       45.327        45.394        45.461       45.995        46.195        46.395        46.662        46.996       47.397  
    a717=47.7971       45.194         45.26       45.327       45.394        45.461        45.527       46.061        46.262        46.462        46.729        47.063       47.463  
    a718=47.8638        45.26        45.327       45.394       45.461        45.527        45.594       46.128        46.328        46.529        46.796         47.13        47.53  
    a719=47.9306       45.327        45.394       45.461       45.527        45.594        45.661       46.195        46.395        46.595        46.862        47.196       47.597  
    a720=47.9973       45.394        45.461       45.527       45.594        45.661        45.728       46.262        46.462        46.662        46.929        47.263       47.664  
    a721=48.0641       45.461        45.527       45.594       45.661        45.728        45.794       46.328        46.529        46.729        46.996         47.33       47.664  
    a722=48.1308       45.527        45.594       45.661       45.661        45.794        45.861       46.395        46.595        46.796        47.063        47.397        47.73  
    a723=48.1976       45.594        45.661       45.728       45.728        45.861        45.928       46.462        46.662        46.862         47.13        47.463       47.797  
    a724=48.2644       45.661        45.728       45.728       45.794        45.928        45.995       46.529        46.729        46.929        47.196         47.53       47.864  
    a725=48.3311       45.728        45.794       45.794       45.861        45.928        46.061       46.595        46.796        46.996        47.263        47.597       47.931  
    a726=48.3979       45.794        45.861       45.861       45.928        45.995        46.128       46.662        46.862        47.063         47.33        47.664       47.997  
    a727=48.4646       45.861        45.928       45.928       45.995        46.061        46.195       46.729        46.929         47.13        47.397         47.73       48.064  
    a728=48.5314       45.928        45.995       45.995       46.061        46.128        46.262       46.796        46.996        47.196        47.463        47.797       48.131  
    a729=48.5981       45.995        46.061       46.061       46.128        46.195        46.328       46.862        47.063        47.263         47.53        47.864       48.198  
    a730=48.6649       46.061        46.128       46.128       46.195        46.262        46.395       46.929         47.13         47.33        47.597        47.931       48.264  
    a731=48.7316       46.128        46.195       46.195       46.262        46.328        46.462       46.996         47.13        47.397        47.664        47.997       48.331  
    a732=48.7984       46.195        46.195       46.262       46.328        46.395        46.529       47.063        47.196        47.463         47.73        48.064       48.398  
    a733=48.8652       46.262        46.262       46.328       46.395        46.462        46.595        47.13        47.263         47.53        47.797        48.131       48.465  
    a734=48.9319       46.328        46.328       46.395       46.462        46.529        46.662        47.13         47.33        47.597        47.864        48.198       48.531  
    a735=48.9987       46.395        46.395       46.462       46.529        46.595        46.729       47.196        47.397        47.664        47.931        48.264       48.598  
    a736=49.0654       46.462        46.462       46.529       46.595        46.662        46.729       47.263        47.463         47.73        47.997        48.331       48.665  
    a737=49.1322       46.529        46.529       46.595       46.662        46.729        46.796        47.33         47.53        47.797        48.064        48.331       48.732  
    a738=49.1989       46.595        46.595       46.662       46.729        46.796        46.862       47.397        47.597        47.864        48.131        48.398       48.798  
    a739=49.2657       46.662        46.662       46.729       46.796        46.862        46.929       47.463        47.664        47.931        48.198        48.465       48.865  
    a740=49.3324       46.729        46.729       46.796       46.862        46.929        46.996        47.53         47.73        47.997        48.264        48.531       48.932  
    a741=49.3992       46.796        46.796       46.862       46.929        46.996        47.063       47.597        47.797        48.064        48.331        48.598       48.999  
    a742=49.466        46.862        46.862       46.929       46.996        47.063         47.13       47.664        47.864        48.131        48.398        48.665       49.065  
    a743=49.5327       46.929        46.929       46.996       47.063         47.13        47.196        47.73        47.931        48.198        48.465        48.732       49.132  
    a744=49.5995       46.929        46.996       47.063        47.13        47.196        47.263       47.797        47.997        48.264        48.531        48.798       49.199  
    a745=49.6662       46.996        47.063        47.13       47.196        47.263         47.33       47.864        48.064        48.331        48.598        48.865       49.266  
    a746=49.733        47.063         47.13       47.196       47.263         47.33        47.397       47.931        48.131        48.331        48.665        48.932       49.332  
    a747=49.7997        47.13        47.196       47.263        47.33        47.397        47.463       47.997        48.198        48.398        48.665        48.999       49.399  
    a748=49.8665       47.196        47.263        47.33       47.397        47.463         47.53       48.064        48.264        48.465        48.732        49.065       49.466  
    a749=49.9332       47.263         47.33       47.397       47.463         47.53        47.597       48.131        48.331        48.531        48.798        49.132       49.533  
    a750=50             47.33        47.397       47.463        47.53        47.597        47.664       48.198        48.398        48.598        48.865        49.199       49.599  

end
ans = 

  Map with properties:

        Count: 12
      KeyType: char
    ValueType: any