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Mathc matrices/a200
Application
Installer et compiler ces fichiers dans votre répertoire de travail.
/* ------------------------------------ */
/* Save as : c00a.c */
int main(void)
int n = 1;
double x1 = +0.66666667;
double x2 = +0.83333333;
double x3 = +0.66666667;
double x4 = +1.00000000;
do{
clrscrn();
printf(" Continue until integers appear : \n\n\n");
printf(" n = %d -> n*x1 = %0.4f \n",n, n*x1);
printf(" n = %d -> n*x2 = %0.4f \n",n, n*x2);
printf(" n = %d -> n*x3 = %0.4f \n",n, n*x3);
printf(" n = %d -> n*x4 = %0.4f \n",n, n*x4);
n++;
}while(stop_w());
return 0;
/* ------------------------------------ */
n = 6 -> n*x1 = 4.0000
n = 6 -> n*x2 = 5.0000
n = 6 -> n*x3 = 4.0000
n = 6 -> n*x4 = 6.0000
Cela nous donne les coefficients de l'équation :
formula_1
Il suffit de remplacer les x1, x2... par leurs valeurs numériques :
formula_2
Exemple de sortie écran :
Continue until integers appear :
n = 1 -> n*x1 = 0.6667
n = 1 -> n*x2 = 0.8333
n = 1 -> n*x3 = 0.6667
n = 1 -> n*x4 = 1.0000
Press return to continue
Press X return to stop
Continue until integers appear :
n = 2 -> n*x1 = 1.3333
n = 2 -> n*x2 = 1.6667
n = 2 -> n*x3 = 1.3333
n = 2 -> n*x4 = 2.0000
Press return to continue
Press X return to stop
---------------------
Continue until integers appear :
n = 3 -> n*x1 = 2.0000
n = 3 -> n*x2 = 2.5000
n = 3 -> n*x3 = 2.0000
n = 3 -> n*x4 = 3.0000
Press return to continue
Press X return to stop
---------------------
Continue until integers appear :
n = 4 -> n*x1 = 2.6667
n = 4 -> n*x2 = 3.3333
n = 4 -> n*x3 = 2.6667
n = 4 -> n*x4 = 4.0000
Press return to continue
Press X return to stop
---------------------
Continue until integers appear :
n = 5 -> n*x1 = 3.3333
n = 5 -> n*x2 = 4.1667
n = 5 -> n*x3 = 3.3333
n = 5 -> n*x4 = 5.0000
Press return to continue
Press X return to stop
Continue until integers appear :
n = 6 -> n*x1 = 4.0000
n = 6 -> n*x2 = 5.0000
n = 6 -> n*x3 = 4.0000
n = 6 -> n*x4 = 6.0000
Press return to continue
Press X return to stop
Mathc matrices/a203
Application
Ce système ne fonctionnerait pas avec le Total Pivoting : (Pivot décalé sur la droite)
Matrice singulière, système compatible :
Matrice singulière, système incompatible : (Je change les valeurs de b)
Mathc matrices/a204
Application
Exemples d'applications :
Une variable libre :
Deux variables libres :
Trois variables libres :