Linear Algebra and the C Language/a0em

__NOTOC__ Install and compile this file in your working directory. /* ------------------------------------ */ /* Save as : c00b.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ /* ------------------------------------ */ double **x_i_RC_mR( int R, /* A[R_SIZE][C0] */ int C /* A[C_SIZE][C0] */ ) { return(i_mR(--R,--C)); /* I subtract row and column zero */ } /* ------------------------------------ */ /* ------------------------------------ */ int main(void) { double **A = i_mR( R3, C5 ); double **B = i_mR( rsize_R(A), csize_R(A) ); double **C = i_RC_mR( A[R_SIZE][C0],A[C_SIZE][C0] ); double **FUN = i_RC_mR( rsize_R(A),csize_R(A) ); clrscrn(); printf(" A:"); p_mR(A, S8,P0,C7); printf(" B:"); p_mR(B, S8,P0,C7); printf(" C:"); p_mR(C, S8,P0,C7); printf(" FUN:"); p_mR(FUN, S8,P0,C7); stop(); f_mR(A); f_mR(B); f_mR(C); f_mR(FUN); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ The function i_RC_mR(); allows you to copy the size of a matrix using the values ​​in memory, instead of calling the functions rsize_R(); and csize_R();. The function i_RC_mR(); starts by subtracting row zero and column zero, then it calls the function i_mR(); The FUN matrix lost one row and one column due to the use of functions rsize_R(); and csize_R(); Screen output example: A: +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 B: +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 C: +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0 FUN: +0 +0 +0 +0 +0 +0 +0 +0 Press return to continue.