Linear Algebra and the C Language/a0hu

/* ------------------------------------ */
/*  Save as :   c00b.c                  */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(int rc)
{
double **A  = rupper_mR(i_mR(rc,rc),9);
double **B  = rupper_mR(i_mR(rc,rc),9);
double **AB =           i_mR(rc,rc);

  clrscrn();

  printf(" A:");
  p_mR(A ,S4,P0,C6);

  printf(" B:");
  p_mR(B ,S4,P0,C6);

  printf(" AB:");
  p_mR(mul_mR(A,B,AB) ,S4,P0,C6);
  
  f_mR(A);
  f_mR(B);
  f_mR(AB);
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));
  
   do 
         fun(rp_I(RC3)+RC1);
        
    while(stop_w());
        
  return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */

                                                                                       
 A:
  +2   -4   +2   +2 
  +0   +5   +3   -2 
  +0   +0   -6   +5 
  +0   +0   +0   +2 

 B:
  -6   +6   -1   -8 
  +0   +1   +8   -8 
  +0   +0   -8   +5 
  +0   +0   +0   +7 

 AB:
 -12   +8  -50  +40 
  +0   +5  +16  -39 
  +0   +0  +48   +5 
  +0   +0   +0  +14 


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