< Mathc matrices


Sommaire


Installer et compiler ces fichiers dans votre répertoire de travail.


c0b6.c
'
/* ------------------------------------ */
/*  Save as :  c0b6.c               */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(void)
{
double ab[R6*C6]={
+754,+750,-983,-721,-737,+394,
+750,+886,+930,+794,-809,-245,
-983,+930,+990,-747,-37,-647,
-721,+794,-747,+886,-301,+682,
-737,-809,-37,-301,-491,+816,
+394,-245,-647,+682,+816,-33
};

int r = RC6;
	
double **A         = ca_A_mR(ab,i_mR(r,r));
double **EignVector=               i_mR(r,r);
double **T_EignVector=             i_mR(r,r);
double **EigsValue =               i_mR(r,C1);

double **T1=             i_mR(r,r);
double **T2=             i_mR(r,r);

  clrscrn();
  printf(" Copy/Past into the octave windows \n\n");
  p_octave_mR(A,"a",S1,P0);
  printf(" [V, E] = eigs (a,10) \n\n");
  stop();

  clrscrn();   
  eignVectoruv_mR(A,EignVector); 
  printf(" EignVector:");
  p_mR(EignVector,S10,P4,C6);

  printf(" EigsValue : T_EignVector * A * EignVector");   
  transpose_mR(EignVector,T_EignVector);   
  mul_mR(T_EignVector,A,T1);
  mul_mR(T1,EignVector,T2);
  p_mR(T2,S10,P4,C6);  
   
  eigsuv_mR(A,EigsValue);
  printf(" EigsValue :");
  p_mR(EigsValue,S10,P4,C1);   
  stop();
   
  f_mR(A);
  
  f_mR(EignVector);
  f_mR(T_EignVector);
  
  f_mR(EigsValue);  
     
  f_mR(T1);
  f_mR(T2);
}
/* ------------------------------------ */
int main(void)
{

  fun();

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


Déclaration des fichiers h.



Exemple de sortie écran :
/* ------------------------------------ */
 Copy/Past into the octave windows 

 a=[
+754,+750,-983,-721,-737,+394;
+750,+886,+930,+794,-809,-245;
-983,+930,+990,-747,-37,-647;
-721,+794,-747,+886,-301,+682;
-737,-809,-37,-301,-491,+816;
+394,-245,-647,+682,+816,-33]

 [V, E] = eigs (a,10) 

 Press return to continue. 


/* ------------------------------------ */
 EignVector:
   -0.1631    +0.5430    +0.5025    -0.5953    -0.1793    +0.1986 
   +0.4504    +0.6251    -0.2601    +0.1579    +0.5032    +0.2462 
   +0.7343    -0.2242    +0.2854    +0.0874    -0.4360    +0.3625 
   -0.1972    +0.3543    +0.4424    +0.7597    -0.1989    -0.1522 
   -0.1891    -0.3656    +0.4749    +0.0991    +0.6016    +0.4829 
   -0.3959    +0.0699    -0.4209    +0.1613    -0.3508    +0.7157 

 EigsValue : T_EignVector * A * EignVector
+2337.8319    -0.0000    -0.0000    -0.0000    -0.0000    -0.0000 
   -0.0000 +2099.7550    -0.0000    +0.0000    -0.0000    -0.0000 
   -0.0000    -0.0000 -1853.6437    +0.0000    +0.0000    +0.0000 
   -0.0000    +0.0000    +0.0000 +1635.5483    -0.0000    +0.0000 
   -0.0000    -0.0000    +0.0000    -0.0000 -1297.4337    +0.0000 
   -0.0000    -0.0000    +0.0000    -0.0000    +0.0000   +69.9422 

 EigsValue :
+2337.8319 
+2099.7550 
-1853.6437 
+1635.5483 
-1297.4337 
  +69.9422 

 Press return to continue.
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