Mathc matrices/c33 2a

Application

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	c02a.c

/* ------------------------------------ */
/*  Save as :   c02a.c                  */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(int r)
{
double **A   = i_mR(r,r);
double **A_2 = i_mR(r,r);
double **B   = i_mR(r,r);
double **B_2 = i_mR(r,r);
double **AplsB   = i_mR(r,r);
double **AplsB_2 = i_mR(r,r);
double **AB   = i_mR(r,r);
double **AB2  = i_mR(r,r);
double **T1   = i_mR(r,r);
double **T2   = i_mR(r,r);

  r_commute2_mR(A,B,9);

  clrscrn();
  printf(" A : ");
  p_mR(A,S5,P3,C6);                                
  printf(" B : ");
  p_mR(B,S5,P3,C6);    
  stop();
  
  clrscrn();   
  printf(" (A+B)**2 :\n");
  add_mR(A,B,AplsB);
  pow_mR(2,AplsB,AplsB_2);
  p_mR(AplsB_2,S8,P3,C6);  
      
  printf(" A**2 + 2*AB + B**2  :\n");
  pow_mR(2,A,A_2);  
  mul_mR(A,B,AB);
 smul_mR(2,AB,AB2);
  pow_mR(2,B,B_2);
  add_mR(A_2,AB2,T1);
  add_mR(T1,B_2,T2);
  p_mR(T2,S8,P3,C6);
    
  f_mR(A);
  f_mR(A_2);
  f_mR(B);
  f_mR(B_2);
  f_mR(AplsB);
  f_mR(AplsB_2);
  f_mR(AB);
  f_mR(AB2);
  f_mR(T1);
  f_mR(T2);
}
/* ------------------------------------ */
void hello(void)
{
  printf("\n                                                  ");
  printf("\n            Commutative matrices                  ");
  printf("\n                                                  ");
  printf("\n       (A+B)**2 = A** + 2*AB + B**2                ");
  printf("\n          **********************                \n");
  printf("\n\n                                                ");
  printf("\n                                                \n");
  stop();
}
/* ------------------------------------ */
int main(void)
{
time_t t;

  srand(time(&t));
  hello();
do
{
  fun(RC5);

} while(stop_w());

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

Exemple de sortie écran :

 A : 
+4.707 -11.338 +8.209 -9.622 +17.082 
-2.071 +3.802 -3.334 +4.022 -6.420 
+0.570 -0.986 +0.033 -0.617 +1.849 
+1.115 -2.084 +1.672 -2.464 +3.269 
-2.568 +5.536 -3.969 +4.724 -8.904 

 B : 
-15.646 +34.640 -25.598 +30.217 -51.352 
+9.909 -21.643 +15.871 -19.648 +32.179 
+1.375 -4.980 +3.641 -4.775 +5.650 
-4.343 +7.980 -6.116 +7.082 -13.228 
+8.107 -17.779 +12.952 -15.749 +26.457 

 Press return to continue. 
 

 (A+B)**2 :

 +12.147  -25.871  +19.084  -22.706  +38.065 
  -8.050  +18.635  -13.063  +16.453  -26.393 
  -1.941   +6.235   -3.789   +5.893   -7.451 
  +2.809   -4.751   +3.746   -3.538   +8.394 
  -6.258  +14.009  -10.140  +12.530  -19.949 

 A**2 + 2*AB + B**2  :

 +12.147  -25.871  +19.084  -22.706  +38.065 
  -8.050  +18.635  -13.063  +16.453  -26.393 
  -1.941   +6.235   -3.789   +5.893   -7.451 
  +2.809   -4.751   +3.746   -3.538   +8.394 
  -6.258  +14.009  -10.140  +12.530  -19.949 


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