87 lines
1.4 KiB
Matlab
87 lines
1.4 KiB
Matlab
% Script in Octave for generating test data
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1;
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% Returns the minor matrix
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function m = minor(A, r, c)
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m = A;
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m(r,:) = [];
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m(:,c) = [];
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end;
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% Returns the cofactor matrix
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function m = cofactors(A)
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m = zeros(rows(A), columns(A));
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for r = [1 : rows(A)]
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for c = [1 : columns(A)]
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m(r, c) = det(minor(A, r, c));
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if (mod(r + c, 2) == 1)
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m(r, c) = -m(r, c);
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end;
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end;
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end;
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end;
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% Prints the matrix as C++ code
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function printout(A, name)
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printf('const float %s[16] = \n', name);
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printf('{\n');
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for c = [1 : columns(A)]
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for r = [1 : rows(A)]
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printf(' %f', A(r,c));
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if (! ( (r == 4) && (c == 4) ) )
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printf(',');
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end;
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printf('\n');
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end;
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end;
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printf('};\n');
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end;
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printf('// Cofactors\n');
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A = randn(4,4);
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printout(A, 'COF_MAT');
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printf('\n');
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printout(cofactors(A), 'COF_RESULT');
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printf('\n');
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printf('\n');
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printf('// Det\n');
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A = randn(4,4);
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printout(A, 'DET_MAT');
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printf('\n');
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printf('const float DET_RESULT = %f;', det(A));
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printf('\n');
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printf('\n');
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printf('// Invert\n');
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A = randn(4,4);
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printout(A, 'INV_MAT');
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printf('\n');
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printout(inv(A), 'COF_RESULT');
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printf('\n');
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printf('\n');
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printf('// Multiplication\n');
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A = randn(4,4);
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printout(A, 'MUL_A');
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printf('\n');
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B = randn(4,4);
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printout(B, 'MUL_B');
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printf('\n');
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C = A * B;
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printout(C, 'MUL_RESULT');
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printf('\n');
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