Linear Algebra and the C Language/a0g8

__NOTOC__ Install and compile this file in your working directory. /* ------------------------------------ */ /* Save as : c00d.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ int main(void) { double a[R3*C3]={ 1, 0,0, 9, 1,0, 9,-8,1}; double id[R3*C3]={ 1, 0,0, 0, 1,0, -9, 8,1}; double **A = ca_A_mR(a, i_mR(R3,C3)); double **ID = ca_A_mR(id, i_mR(R3,C3)); double **AID = mul_mR(A,ID, i_mR(R3,C3)); clrscrn(); printf(" Put zero on the left of the pivot: [R3,C3]\n\n"); printf(" ID:"); p_mR(ID, S3,P0,C6); printf(" A:"); p_mR(A, S3,P0,C6); printf(" A ID:"); p_mR(AID, S3,P1,C6); stop(); f_mR(A); f_mR(ID); f_mR(AID); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Put zero on the left of the pivot: Screen output example: Put zero on the left of the pivot: [R3,C3] ID: +1 +0 +0 +0 +1 +0 -9 +8 +1 A: +1 +0 +0 +9 +1 +0 +9 -8 +1 A ID: +1.0 +0.0 +0.0 +9.0 +1.0 +0.0 +0.0 +0.0 +1.0 Press return to continue.