Application


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gj_r4.c
/* ------------------------------------ */
/*  Save as :   gj_r4.c                 */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
/* ------------------------------------ */
double **xx_GJ_TPfreeV_mR(
double **Ab,
double **new_Ab)
{
int r;
	            
  c_mR(Ab,new_Ab);
  
  clrscrn();
  printf(" ---------------DEBUG 1 ------------ \n");
  printf(" new_Ab : put the zero rows");
  p_mR(new_Ab,S8,P4,C8); 
                                                           
  put_freeV_TP_mR(new_Ab,Ab[R_SIZE][C0]);
  
  printf(" new_Ab : put_freeV_TP_mR()");
  p_mR(new_Ab,S8,P4,C8); 
  stop(); 
  
  clrscrn();  
  printf(" ---------------DEBUG 2 ------------ \n"); 
  printf(" Copy/Past into the octave window.\n\n");
  p_Octave_mR(new_Ab,"new_Ab",P8);
  printf("\n rref(new_Ab,.00000000001)\n\n");
  stop();
    
  clrscrn();  
  printf(" -- VERIFY THE RESULT INTO OCTAVE --\n"); 

  r = rsize_R(new_Ab);
  
  while(r>R1)
    
        zero_below_pivot_gj1Ab_mR(new_Ab,r--);	
	
return(new_Ab);
}
/* ------------------------------------ */
/* ------------------------------------ */

void fun(int r, int c)
{
double **A  = i_mR(r,c);
double **b  = i_mR(r,C1);
double **Ab = i_Abr_Ac_bc_mR(r,c,C1);

double **new_Ab = i_Abr_Ac_bc_mR(csize_A_R(Ab), 
                                 csize_A_R(Ab),
                                 csize_R(A)-rsize_R(A) + C1);  

  r_mR(A,999.);
  r_mR(b,999.);
  
  clrscrn();
  printf(" A :");
  p_mR(A,S8,P0,C7);
  
  printf(" b :");
  p_mR(b,S8,P0,C7);
  
  printf(" Ab :");
  c_A_b_Ab_mR(A,b,Ab);
  p_mR(Ab,S8,P0,C7);
  stop();

  clrscrn();
  GJ_TP_mR(Ab);
  printf(" Ab :");
  p_mR(Ab,S10,P4,C7);
  stop();  
  
  clrscrn();
  xx_GJ_TPfreeV_mR(Ab,new_Ab); 
  printf(" new_Ab :"); 
  p_mR(new_Ab,S10,P4,C7);
  
  f_mR(new_Ab);  
  f_mR(Ab);
  f_mR(b);
  f_mR(A);
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));
do
{
    fun(R3, C5);

} while(stop_w());

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


Vérifions le résultat avec octave


Exemple de sortie écran :
 ------------------------------------------
 A :
    -468     +595     -781     -833     -270 
     -55     -978     -879     -525     -243 
     -52     -817     -799     -808      -42 

 b :
    -934 
    -680 
    -639 

 Ab :
    -468     +595     -781     -833     -270     -934 
     -55     -978     -879     -525     -243     -680 
     -52     -817     -799     -808      -42     -639 

 Press return to continue. 


 ------------------------------------------
 Ab :
   +1.0000    +0.0000    -0.0000   -16.8104    +9.7578    -0.2510 
   +0.0000    +1.0000    -0.0000    -5.0632    +2.7567    -0.2972 
   +0.0000    -0.0000    +1.0000    +7.2826    -3.4013    +1.1199 

 Press return to continue. 

 

 ---------------DEBUG 1 ------------ 
 new_Ab : put the zero rows
 +1.0000  +0.0000  -0.0000 -16.8104  +9.7578  -0.2510  +0.0000  +0.0000 
 +0.0000  +1.0000  -0.0000  -5.0632  +2.7567  -0.2972  +0.0000  +0.0000 
 +0.0000  -0.0000  +1.0000  +7.2826  -3.4013  +1.1199  +0.0000  +0.0000 
 +0.0000  +0.0000  +0.0000  +0.0000  +0.0000  +0.0000  +0.0000  +0.0000 
 +0.0000  +0.0000  +0.0000  +0.0000  +0.0000  +0.0000  +0.0000  +0.0000 

 new_Ab : put_freeV_TP_mR()
 +1.0000  +0.0000  -0.0000 -16.8104  +9.7578  -0.2510  +0.0000  +0.0000 
 +0.0000  +1.0000  -0.0000  -5.0632  +2.7567  -0.2972  +0.0000  +0.0000 
 +0.0000  -0.0000  +1.0000  +7.2826  -3.4013  +1.1199  +0.0000  +0.0000 
 +0.0000  +0.0000  +0.0000  +1.0000  +0.0000  +0.0000  +1.0000  +0.0000 
 +0.0000  +0.0000  +0.0000  +0.0000  +1.0000  +0.0000  +0.0000  +1.0000 

 Press return to continue. 


 ---------------DEBUG 2 ------------ 
 Copy/Past into the octave window.

 new_Ab=[
+1.00000000,+0.00000000,-0.00000000,-16.81043896,+9.75782546,-0.25101204,+0.00000000,+0.00000000;
+0.00000000,+1.00000000,-0.00000000,-5.06319322,+2.75671307,-0.29715283,+0.00000000,+0.00000000;
+0.00000000,-0.00000000,+1.00000000,+7.28256782,-3.40130351,+1.11993303,+0.00000000,+0.00000000;
+0.00000000,+0.00000000,+0.00000000,+1.00000000,+0.00000000,+0.00000000,+1.00000000,+0.00000000;
+0.00000000,+0.00000000,+0.00000000,+0.00000000,+1.00000000,+0.00000000,+0.00000000,+1.00000000]


 rref(new_Ab,.00000000001)

 Press return to continue. 


 -- VERIFY THE RESULT INTO OCTAVE --
 new_Ab :
   +1.0000    +0.0000    +0.0000    +0.0000    +0.0000    -0.2510   +16.8104 
   +0.0000    +1.0000    +0.0000    +0.0000    +0.0000    -0.2972    +5.0632 
   +0.0000    +0.0000    +1.0000    +0.0000    +0.0000    +1.1199    -7.2826 
   +0.0000    +0.0000    +0.0000    +1.0000    +0.0000    +0.0000    +1.0000 
   +0.0000    +0.0000    +0.0000    +0.0000    +1.0000    +0.0000    +0.0000 

   -9.7578 
   -2.7567 
   +3.4013 
   +0.0000 
   +1.0000 


 Press return to continue
 Press X      to stop