Function matrixmulti

code/Chapter8/8-11.c:6–18

#include<time.h>
#define min(a,b) ((a)<(b)?(a):(b))
void matrixmulti(float N, float**x, float** y, float** z)
{
    int i, j, k,r;
    for (i = 0; i < N; i++) {
        for (j = 0; j < N; j++) {
            r = 0;
            for (k = 0; k < N; k++) {
                r = r + y[i][k] * z[k][j];
            }
            x[i][j] = r;
        }
    }
}
int main()
{
    int n, i, j;