Math_Programming/Add_matrices_unb.m at main · SciComp8/Math_Programming · GitHub

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% Copyright 2023 The University of Texas at Austin
%
% For licensing information see
%                http://www.cs.utexas.edu/users/flame/license.html
%
% Programmed by: Anni Liu

% Interpret the function: http://edx-org-utaustinx.s3.amazonaws.com/UT501x/PictureFLAME/PictureFLAME.html

function [ A_out ] = Add_matrices_unb( A, B )

  [ AL, AR ] = FLA_Part_1x2( A, ...
                               0, 'FLA_LEFT' );

  [ BL, BR ] = FLA_Part_1x2( B, ...
                               0, 'FLA_LEFT' );

  while ( size( AL, 2 ) < size( A, 2 ) )

    [ A0, a1, A2 ]= FLA_Repart_1x2_to_1x3( AL, AR, ...
                                         1, 'FLA_RIGHT' );

    [ B0, b1, B2 ]= FLA_Repart_1x2_to_1x3( BL, BR, ...
                                         1, 'FLA_RIGHT' );

    %------------------------------------------------------------%

    a1 = a1 + b1;

    %------------------------------------------------------------%

    [ AL, AR ] = FLA_Cont_with_1x3_to_1x2( A0, a1, A2, ...
                                           'FLA_LEFT' );

    [ BL, BR ] = FLA_Cont_with_1x3_to_1x2( B0, b1, B2, ...
                                           'FLA_LEFT' );

  end

  A_out = [ AL, AR ];

return

% Test the function:
% A = randi([-2,2], 4, 3)
% B = randi([-1,9], 4, 3)
% Add_matrices_unb( A, B )