Linear Algebra and the C Language/a0as

/* ------------------------------------ */
/*  Save as :   c00f.c                  */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(int r)
{
double **u  = r_mR(i_mR(r,C1),9.);
double **v  = r_mR(i_mR(r,C1),9.);
double **w  = r_mR(i_mR(r,C1),9.);

double **vplsw  =  i_mR(r,C1);

  clrscrn();
  printf(" u :");
  p_mR(u,S3,P0,C6);
  printf(" v :");
  p_mR(v,S3,P0,C6);
  printf(" v+w :");
  p_mR(add_mR(v,w,vplsw),S3,P0,C6);
  stop();
    
  clrscrn();  
  printf("      <u,v+w> = <u,v>+<u+w> \n\n");
  
  printf("     <u,v+w>  = %.0f    \n", dot_R(u,vplsw));
  printf(" <u,v>+<u,w>  = %.0f  \n\n", dot_R(u,v)+dot_R(u,w));
  
  f_mR(u);
  f_mR(v);
  f_mR(w);
  f_mR(vplsw);
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));

do
{
  fun(rp_I(R3)+R2);


} while(stop_w());

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

                                                                                       
 u :
 -9 
 +1 
 +7 

 v :
 +4 
 -3 
 +9 

 v+w :
 +6 
 +1 
+13 

 Press return to continue. 


      <u,v+w> = <u,v>+<u+w> 

     <u,v+w>  = 38    
 <u,v>+<u,w>  = 38  


 Press   return to continue
 Press X return to stop