Linear Algebra and the C Language/a0db

__NOTOC__ Install and compile this file in your working directory. /* ------------------------------------ */ /* Save as: c00b.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ void fun(int r) { double **A = rsymmetric_mR( i_mR(r,r),9); double **EValue = eigs_mR(A, i_mR(r,C1)); double p = 1; int i = 0; clrscrn(); printf(" A:"); p_mR(A,S2,P0,C6); printf(" EValue:"); p_mR(eigs_mR(A,EValue),S13,P6,C1); for(i=R1;i<=r;i++) p *= EValue[i][C1]; printf(" Product of the eigenvalues of A: %.3f \n", p); printf(" Determinant of A : %.3f\n\n\n", det_R(A)); f_mR(A); f_mR(EValue); } /* ------------------------------------ */ int main(void) { time_t t; srand(time(&t)); do { fun(rp_I(R4)+R2); } while(stop_w()); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Screen output example: A : -7 +5 -9 -6 +5 -4 -2 -5 -9 -2 -6 -9 -6 -5 -9 -8 EValue : -23.131710 -9.905380 +5.343318 +2.693772 Product of the eigenvalues of A : 3298.000 Determinant of A : 3298.000 Press return to continue Press X return to stop