Mathc matrices/c101d

Application

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	c00e.c

/* ------------------------------------ */
/*  Save as:   c00e.c                   */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(int r)
{                          /* The system is consistent      */
double **Ab = r_singular_Ab_mR( i_Abr_Ac_bc_mR(r,r,C1),999);

double **A  =        c_Ab_A_mR(Ab,        i_mR(r,r));
double **b  =        c_Ab_b_mR(Ab,        i_mR(r,C1));

         r_mR(b,999);       /* I change the value of b       */
  c_A_b_Ab_mR(A,b,Ab);      /* The system  is not consistent */
                                                    
  clrscrn();
  printf(" Ab:              Rows of identical A's, with different b's");
  p_mR(Ab, S8,P0,C7);
  stop();

  clrscrn();
  printf(" Copy/Paste into the octave window.\n\n");
  p_Octave_mR(Ab,"Ab",P0);
  printf("\n rref(Ab,.00000000001)\n\n");

  printf(" gj_PP_mR(Ab,YES):");
  p_mR(gj_PP_mR(Ab,YES), S10,P4,C7);
  
  is_system_consistent_mR(Ab);

  f_mR(Ab);
  f_mR(b);
  f_mR(A);
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));
do
{
  fun(rp_I(R5)+R1);


} while(stop_w());

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

Exemple de sortie écran :

 Ab:              Rows of identical A's, with different b's
    -903     -882     -193     +435 
    -482     -983     -977     -727 
    -903     -882     -193     +863 

 Press return to continue. 


 Copy/Paste into the octave window.

 Ab=[
-903,-882,-193,+435;
-482,-983,-977,-727;
-903,-882,-193,+863]


 rref(Ab,.00000000001)

 gj_PP_mR(Ab,YES):
   +1.0000    +0.0000    -1.4529    -2.3108 
   -0.0000    +1.0000    +1.7063    +1.8727 
   +0.0000    +0.0000    +0.0000  +428.0000 

 This(ese) row(s) are incompatible.
 row 3;  
 The system is inconsistent. 
 I prefer to close the program.
 Press return to continue.