Linear Algebra and the C Language/a0fl

__NOTOC__ Install and compile this file in your working directory. /* ------------------------------------ */ /* Save as : c00b.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ /* ------------------------------------ */ double **X_rlower_mR( double **A, int n ) { int r; int c; isquare_mR(A,"rlower_mR;","(A)"); m0_mR(A); for (r=R1; r<A[R_SIZE][C0]; r++) for (c=C1; c<A[C_SIZE][C0]; c++) if(r>=c) A[r][c] = r_I(n); return(A); } /* ------------------------------------ */ /* ------------------------------------ */ void fun(int rc) { double **A = rlower_mR(i_mR(rc,rc),9); clrscrn(); printf(" rlower_mR(): Lower triangular matrix\n\n" " A[R%d,C%d] :",rsize_R(A),csize_R(A)); p_mR(A,S4,P0,C8); f_mR(A); } /* ------------------------------------ */ int main(void) { time_t t; srand(time(&t)); do fun(rp_I(RC8)); while(stop_w()); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Lower triangular matrix: Screen output example: rlower_mR(): Lower triangular matrix A[R3,C3] : -7 +0 +0 -8 +1 +0 -7 -8 -6 Press return to continue Press X return to stop