Linear Algebra and the C Language/a09o
Install and compile this file in your working directory.
/* ------------------------------------ */
/* Save as : c00c.c */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
/* ------------------------------------ */
#define RAb R4
#define CA C4
#define Cb C1
/* ------------------------------------ */
# define FREEV C1
/* ------------------------------------ */
/* ------------------------------------ */
int main(void)
{
double ab[RAb*(CA+C1)]={
-944, +337, -777, -131, -592,
-944, +337, -777, -131, -592,
+509, +581, -475, -544, -649,
+69, +777, -245, -51, +974
};
double **Ab = ca_A_mR(ab,i_Abr_Ac_bc_mR(RAb, CA, Cb));
double **Ab_free = i_Abr_Ac_bc_mR(CA, CA,Cb + FREEV);
double **b_free = i_mR(CA, Cb + FREEV);
clrscrn();
printf(" Ab :");
p_mR(Ab, S10,P4,C10);
printf(" Ab : gj_PP_mR(Ab,NO) :");
gj_PP_mR(Ab,NO);
p_mR(Ab, S10,P4,C10);
stop();
clrscrn();
put_zeroR_mR(Ab,Ab_free);
printf(" Ab_free : put_zeroR_mR(Ab,Ab_free);");
p_mR(Ab_free, S10,P4,C10);
put_freeV_mR(Ab_free);
printf(" Ab_free : put_freeV_mR(Ab_free);");
p_mR(Ab_free, S10,P4,C10);
printf(" Ab_free : gj_PP_mR(Ab_free,YES);");
gj_PP_mR(Ab_free,YES);
p_mR(Ab_free, S10,P4,C10);
stop();
clrscrn();
c_Ab_b_mR(Ab_free,b_free);
printf(" b_free :");
p_mR(b_free, S10,P4,C7);
printf(" b FREEV");
p_freeV(b_free, S8,P4);
stop();
f_mR(Ab);
f_mR(Ab_free);
f_mR(b_free);
return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */
Screen output example:
Ab :
-944.0000 +337.0000 -777.0000 -131.0000 -592.0000
-944.0000 +337.0000 -777.0000 -131.0000 -592.0000
+509.0000 +581.0000 -475.0000 -544.0000 -649.0000
+69.0000 +777.0000 -245.0000 -51.0000 +974.0000
Ab : gj_PP_mR(Ab,NO) :
+1.0000 -0.3570 +0.8231 +0.1388 +0.6271
+0.0000 +1.0000 -0.3765 -0.0756 +1.1610
-0.0000 -0.0000 +1.0000 +0.9179 +3.0549
+0.0000 +0.0000 +0.0000 +0.0000 +0.0000
Press return to continue.
Ab_free : put_zeroR_mR(Ab,Ab_free);
+1.0000 -0.3570 +0.8231 +0.1388 +0.6271 +0.0000
+0.0000 +1.0000 -0.3765 -0.0756 +1.1610 +0.0000
-0.0000 -0.0000 +1.0000 +0.9179 +3.0549 +0.0000
+0.0000 +0.0000 +0.0000 +0.0000 +0.0000 +0.0000
Ab_free : put_freeV_mR(Ab_free);
+1.0000 -0.3570 +0.8231 +0.1388 +0.6271 +0.0000
+0.0000 +1.0000 -0.3765 -0.0756 +1.1610 +0.0000
-0.0000 -0.0000 +1.0000 +0.9179 +3.0549 +0.0000
+0.0000 +0.0000 +0.0000 +1.0000 +0.0000 +1.0000
Ab_free : gj_PP_mR(Ab_free,YES);
+1.0000 +0.0000 +0.0000 +0.0000 -1.0623 +0.5204
+0.0000 +1.0000 +0.0000 +0.0000 +2.3111 -0.2700
+0.0000 +0.0000 +1.0000 +0.0000 +3.0549 -0.9179
+0.0000 +0.0000 +0.0000 +1.0000 +0.0000 +1.0000
Press return to continue.
b_free :
-1.0623 +0.5204
+2.3111 -0.2700
+3.0549 -0.9179
+0.0000 +1.0000
b FREEV
x1 = -1.0623 +0.5204*u
x2 = +2.3111 -0.2700*u
x3 = +3.0549 -0.9179*u
x4 = +0.0000 +1.0000*u
Press return to continue.