Linear Algebra and the C Language/a06o

__NOTOC__ Cross product: Code study In this function, I'm using row vectors. In mathematics, vectors are considered column vectors. That's why I'm using *_T (Transpose) to display vectors. I copy the vectors U and V into the matrix A. Then I calculate the cofactor expansion along the first row of A to obtain UxV. /* ------------------------------------ */ /* ------------------------------------ */ double **UxV_mR( double **U_T, double **V_T, double **UxV_T ) { double **A = i_mR(R3, C3); // u and v -> A c_r_mR(U_T, R1, A, R2); c_r_mR(V_T, R1, A, R3); // cofactor(detA) -> (u x v) c_s_mR(cofactor_R(A, R1, C1), UxV_T, R1, C1); c_s_mR(cofactor_R(A, R1, C2), UxV_T, R1, C2); c_s_mR(cofactor_R(A, R1, C3), UxV_T, R1, C3); f_mR(A); return(UxV_T); } /* ------------------------------------ */ /* ------------------------------------ */