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f_mR(Inv);
f_mR(A);
return 0;
/* ------------------------------------ */
Exemple de sortie écran :
We want to find X such as,
AX = B
If A is a square matrix and,
If A has an inverse matrix,
you can find X by this method
X = inv(A) B
To verify the result you can
multiply the matrix A by X.
You must refind B.
Press return to continue.
------------------------------------
A :
+10 -150 -148
+207 -215 +997
-858 +803 +289
B :
+437
-233
+444
Press return to continue.
------------------------------------
inv(A) :
-6.568e-03 -5.747e-04 -1.381e-03
-6.967e-03 -9.447e-04 -3.091e-04
-1.389e-04 +9.186e-04 +2.200e-04
X = inv(A) * B :
-3.3492
-2.9619
-0.1771
Press return to continue.
------------------------------------
B :
+437
-233
+444
AX :
+437
-233
+444
Press return to continue.
Mathc matrices/a111
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 bt[RA*Cb]={
+437, -146, -175, -954, -432,
-233, +243, +772, +920, -98,
+444, -886, -604, -15, +946
double **A = ca_A_mR(at,i_mR(RA,CA));
double **B = ca_A_mR(bt,i_mR(RA,Cb));
double **Inv = i_mR(RA,CA);
double **X = i_mR(RA,Cb);
double **T = i_mR(RA,Cb);
clrscrn();
printf(" \n");
printf(" Linear systems with common coefficient matrix.\n\n");
printf(" Ax1=b1 \n");
printf(" Ax2=b2 \n");
printf(" ... \n");
printf(" Axn=bn \n\n");
printf(" We can write these equalities in this maner. \n\n");
printf(" A|x1|x2|...|xn| = b1|b2|...|bn| \n\n");
printf(" or simply : \n\n");
printf(" AX = B \n\n");
printf(" where B = b1|b2|...|bn \n\n");
printf(" and X = x1|x2|...|xn \n\n");
stop();
clrscrn();
printf(" We want to find X such as, \n\n");
printf(" AX = B \n\n");
printf(" If A is a square matrix and, \n\n");
printf(" If A has an inverse matrix, \n\n");
printf(" you can find X by this method\n\n");
printf(" X = inv(A) B \n\n\n");
printf(" To verify the result you can \n\n");
printf(" multiply the matrix A by X. \n\n");
printf(" You must refind B. \n\n");
stop();
clrscrn();
printf(" A :\n");
p_mR(A,S5,P0,C6);
printf(" b1 b2 ... bn :\n");
p_mR(B,S9,P0,C6);
stop();
clrscrn();