411 REFERENCE · Wikibooks
Linear Algebra and the C Language/a0a4
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__NOTOC__
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/* ------------------------------------ */
/* Save as : c00c.c */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
void fun(int r)
{
double **u = r_mR(i_mR(r,C1),9.);
double **n_u = i_mR(r,C1);
clrscrn();
printf(" u :");
p_mR(u,S3,P0,C6);
smul_mR(1./norm_R(u),u,n_u);
printf(" n_u = (1/||u||) u :");
p_mR(n_u,S3,P6,C6);
printf(" ||n_u|| = %.10f \n\n", norm_R(n_u));
f_mR(u);
f_mR(n_u);
}
/* ------------------------------------ */
int main(void)
{
time_t t;
srand(time(&t));
do
{
fun(rp_I(R3)+R2);
} while(stop_w());
return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */
Screen output example:
u :
+2
+4
+2
-5
n_u = (1/||u||) u :
+0.285714
+0.571429
+0.285714
-0.714286
||n_u|| = 1.0000000000
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