Linear Algebra and the C Language/a054

__NOTOC__ Install and compile this file in your working directory. /* ------------------------------------ */ /* Save as : addr.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ int main(void) { double a[R3*C3] ={ 1, 2, 3, 2, 2, 2, 3, 3, 3 }; double **A = ca_A_mR(a, i_mR(R3,C3)); double s; int r1; int r2; clrscrn(); printf(" A :"); p_mR(A,S5,P0,C6); s = -2.; r1 = R1; r2 = R2; printf(" Multiply R%d by %+.0f, \n",r1,s); printf(" then add %+.0fR%d and R%d \n",s,r1,r2); printf(" put the result into R%d \n\n",r2); printf(" A :"); p_mR(addR_mR(A,s,r1,r2),S5,P0,C6); stop(); clrscrn(); printf(" A :"); p_mR(A,S5,P0,C6); s = -3.; r1 = R1; r2 = R3; printf(" Multiply R%d by %+.0f, \n",r1,s); printf(" then add %+.0fR%d and R%d \n",s,r1,r2); printf(" put the result into R%d \n\n",r2); printf(" A :"); p_mR(addR_mR(A,s,r1,r2),S5,P0,C6); stop(); f_mR(A); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Multiplies r1 by s add sr1 at r2: Screen output example: A : +1 +2 +3 +2 +2 +2 +3 +3 +3 Multiply R1 by -2, then add -2R1 and R2 put the result into R2 A : +1 +2 +3 +0 -2 -4 +3 +3 +3 Press return to continue. A : +1 +2 +3 +0 -2 -4 +3 +3 +3 Multiply R1 by -3, then add -3R1 and R3 put the result into R3 A : +1 +2 +3 +0 -2 -4 +0 -3 -6 Press return to continue.