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c_A_b_Ab_mR(A,b,Ab);
p_mR(Ab,S8,P0,C6);
stop();
clrscrn();
printf(" Copy/Past into the octave window.\n\n");
p_Octave_mR(Ab,"Ab",P0);
printf("\n rref(Ab.00000000001)\n\n");
printf(" gj_TP_mR(Ab) :");
gj_TP_mR(Ab);
p_mR(Ab,S10,P4,C6);
stop();
f_mR(Ab);
f_mR(b);
f_mR(A);
return 0;
/* ------------------------------------ */
Nous utilisons la fonction gj_TP_mR(Ab); pour résoudre ce système.
Exemple de sortie écran :
A :
+10 -150 -148
+207 -215 +997
-858 +803 +289
b1 b2 ... bn :
+437 -146 -175 -954 -432
-233 +243 +772 +920 -98
+444 -886 -604 -15 +946
Press return to continue.
Ab :
+10 -150 -148 +437 -146 -175
+207 -215 +997 -233 +243 +772
-858 +803 +289 +444 -886 -604
-954 -432
+920 -98
-15 +946
Press return to continue.
------------------------------------
Copy/Past into the octave window.
Ab=[
+10,-150,-148,+437,-146,-175,-954,-432;
+207,-215,+997,-233,+243,+772,+920,-98;
-858,+803,+289,+444,-886,-604,-15,+946]
rref(Ab.00000000001)
gj_TP_mR(Ab) :
+1.0000 +0.0000 -0.0000 -3.3492 +2.0425 +1.5396
-0.0000 +1.0000 -0.0000 -2.9619 +1.0616 +0.6767
+0.0000 +0.0000 +1.0000 -0.1771 +0.0486 +0.6006
+5.7575 +1.5874
+5.7825 +2.8101
+0.9744 +0.1781
Press return to continue.
Mathc matrices/a109
Application
Installer et compiler ces fichiers dans votre répertoire de travail.
/* Save as : c00.c */
int main(void)
double at[RA*CA]={
+10, -150, -148,
+207, -215, +997,
-858, +803, +289
double **A = ca_A_mR(at,i_mR(RA,CA));
double **b = eye_mR( i_mR(RA,Cb));
double **Ab = i_Abr_Ac_bc_mR(RA,CA,Cb);
double **invA = i_mR(RA,CA);
clrscrn();
printf(" A :");
p_mR(A,S8,P0,C6);
printf(" b : ID :");
p_mR(b,S8,P0,C6);
stop();
clrscrn();
printf(" Ab :");
c_A_b_Ab_mR(A,b,Ab);
p_mR(Ab,S8,P0,C6);
printf(" gj_TP_mR(Ab) :");
gj_TP_mR(Ab);
pE_mR(Ab,S12,P4,C6);;
stop();
clrscrn();
printf(" Copy/Past into the octave window.\n\n");
p_Octave_mR(A,"A",P0);
printf("format short e\n");
printf(" inv(A)\n\n");
printf(" invA : c_Inv_A_mR(Ab,invA);");
c_Inv_A_mR(Ab,invA);
pE_mR(invA,S12,P4,C6);
stop();
f_mR(invA);
f_mR(Ab);
f_mR(b);
f_mR(A);
return 0;
/* ------------------------------------ */
Utiliser la fonction gj_TP_mR(Ab); pour inverser une matrice.
Exemple de sortie écran :
A :