for (int i = 0; i < a.length; i++) { res[i] = a[i] * a[i]; return res;
float sum = 0; for (int i = 0; i < a.length; i++) { float diff = a[i] - b[i]; sum += diff * diff; return sum;
float sum = 0; for (int i = 0; i < p.length; i++) { sum += (p[i] - q[i]) * (p[i] - q[i]); return sum;
double[] newv = new double[v.length]; for (int i = 0; i < v.length; i++) newv[i] = Math.sqrt(v[i]); return newv;
for (int i = 0; i < vector.length; i++) vector[i] = Math.sqrt(vector[i]);