Dot Product Example

Recall that if x=(x_0,x_1,…) and y=(y_0,y_1,…) are n-dimensional vectors of real numbers then x.y = x_0*y_0 + x_1*y_1 + …

float x[] /* in */,

float y[] /* in */,

int n /* in */) {

int i;

float sum = 0.0;

for (i = 0; i < n; i++)

sum = sum + x[i]*y[i];

return sum;

} /* Serial_dot */

Recall that if x=(x_0,x_1,…) and y=(y_0,y_1,…) are n-dimensional vectors of real numbers then x.y = x_0*y_0 + x_1*y_1 + …