Mathc matrices/c20s

Application

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	c00f.c

/* ------------------------------------ */
/*  Save as :   c00f.c                  */
/* ------------------------------------ */
#include      "v_a.h"
#include "dot_diag.h"
/* ------------------------------------ */
void fun(void)
{
double a[R2*C2]={ 2,0,
                  0,3};
double u[R2*C1]={ 1,
                  1};                  
double v[R2*C1]={ 3,
                  2};                  
              
double k = 3;
              
double **A  = ca_A_mR(a,i_mR(R2,C2));
double **U  = ca_A_mR(u,i_mR(R2,C1));
double **V  = ca_A_mR(v,i_mR(R2,C1));
double **kV = smul_mR(k,V,i_mR(R2,C1));

double **UmnskV  = sub_mR(U,kV,i_mR(R2,C1));

  clrscrn();
  printf(" A :");
  p_mR(A,S3,P0,C6);
  printf(" U :");
  p_mR(U,S3,P0,C6);
  printf(" V :");
  p_mR(V,S3,P0,C6);
  
  printf(" kV :");
  p_mR(kV,S3,P0,C6);   
  printf(" U-kV :");
  p_mR(UmnskV,S3,P0,C6); 

  printf("      ||U-kV|| = sqrt(%.0f)  \n\n", 
                 dot_Diag_R(A,UmnskV,UmnskV));

  f_mR(A);
  f_mR(U);
  f_mR(V);
  f_mR(kV);
  f_mR(UmnskV);  
}
/* ------------------------------------ */
int main(void)
{

  fun();
  
  stop();

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

Exemple de sortie écran :

 ------------------------------------ 
 A :
 +2  +0 
 +0  +3 

 U :
 +1 
 +1 

 V :
 +3 
 +2 

 kV :
 +9 
 +6 

 U-kV :
 -8 
 -5 

      ||U-kV|| = sqrt(203)  

 Press return to continue.