in labs/CalcAPI/src/calc.c [22:35]
double dot_product(double *arr1, double *arr2, int size) {
double res = 0;
for (int i =0; i < size; i++) {
double v = arr1[i];
double u = arr2[i];
double prod = 0;
if (v != 0 && u != 0) {
prod = v * u;
}
res += prod;
//printf("%f * %f = %f\t%f\r\n",v,u, prod, res);
}
return res;
}