411 REFERENCE · Wikibooks
Linear Algebra and the C Language/a003
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__NOTOC__
Install and compile this file in your working directory.
/* ------------------------------------ */
/* Save as : c00a.c */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(void)
{
double **U_T = r_mR( i_mR(R1,C3), 9);
double **V_T = r_mR( i_mR(R1,C3), 9);
double **UxV = UxV_mR(U_T,V_T,i_mR(R1,C3));
double **VxU = UxV_mR(V_T,U_T,i_mR(R1,C3));
clrscrn();
printf(" u_T:");
p_mR(U_T, S3,P0,C6);
printf(" v_T:");
p_mR(V_T, S3,P0,C6);
printf(" u x v: ");
p_mR(UxV, S5,P0,C6);
printf(" v x u: ");
p_mR(VxU, S5,P0,C6);
f_mR(U_T);
f_mR(V_T);
f_mR(UxV);
f_mR(VxU);
}
/* ------------------------------------ */
int main(void)
{
time_t t;
srand(time(&t));
do
{
fun();
} while(stop_w());
return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */
u x v == - v x u:
Screen output example:
u_T :
+4 -2 -4
v_T :
+4 -8 -7
u x v :
-18 +12 -24
v x u :
+18 -12 +24
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