/* ------------------------------------ */
/*  Save as :   cq4.c                   */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(int r)
{
double **A      = r_mR(i_mR(r,r),9.);
double **u      = r_mR(i_mR(r,C1),9.);
double **Qu     =      i_mR(r,C1);
double **Q      =      i_mR(r,r);

  clrscrn();
  
  r_Quv_mR(A,Q);    
  printf(" Q :");
  p_mR(Q,3,5,6);
  
  printf(" u :");
  p_mR(u,3,5,6);


  printf("        T(u) = Q*u   \n\n ");
  printf(" ||T(u)||     = ||u|| \n\n ");
  printf("   %f   = %f           \n\n ",
  
  normuv_R(mul_mR(Q,u,Qu)),  normuv_R(u));
   
  f_mR(A);
  f_mR(u); 
  f_mR(Qu);
  f_mR(Q);
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));

do
{
  fun(rp_I(3)+R2);

} while(stop_w());

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