Matrix Multiplication Figure 6.45 (a)P518 *立jk★ Variable sum for (1=0; i<n; i++)t held in register f。r(j=0;j<n;j++) sum三0,0 for (k=0; k<n; k++) sum + a[i][k]* blk][j]i cli][3] sum;20 /* ijk */ for (i=0; i<n; i++) { for (j=0; j<n; j++) { sum = 0.0; for (k=0; k<n; k++) sum += a[i][k] * b[k][j]; c[i][j] = sum; } } Variable sum held in register Matrix Multiplication Figure 6.45 (a) P518