Linear Algebra and the C Language/a05k

Install and compile this file in your working directory.

/* ------------------------------------ */
/*  Save as :   det_R.c                 */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(int r)
{                       
double **A = r_mR(i_mR(r,r),99);

  clrscrn();
  printf(" Copy/Paste into the octave window.\n\n");
  p_Octave_mR(A,"A", P0);
  printf(" det(A)\n\n\n");

  printf(" det_R(A)  = %+.0f\n\n\n",det_R(A));

  f_mR(A);  
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));
do
{
  fun(rp_I(RC5)+RC1);
  
} while(stop_w());

  return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */

Screen output example:

 Copy/Paste into the octave window.

 A=[
+35,-40,-7;
+24,-57,+6;
+39,+33,+99]

 det(A)


 det_R(A)  = -139860



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