assert (v.length == w.length); double[] r = new double[v.length]; for (int i = 0; i < v.length; i++) r[i] = v[i] * w[i]; return r;
double dorProduct = X1 * X2 + Y1 * Y2 + Z1 * Z2; return dorProduct;
if (v1.length != v2.length) return 0; double sum = 0; for (int i = 0; i < v1.length; i++) sum += v1[i] * v2[i]; return sum;
double[][] xx = null; double[][] yy = null; int i; if (isColumnVectorX) { xx = new double[x.length][1]; for (i = 0; i < x.length; i++) xx[i][0] = x[i]; } else { ...
float[] res = new float[3]; res[0] = x[1] * y[2] - x[2] * y[1]; res[1] = x[2] * y[0] - x[0] * y[2]; res[2] = x[0] * y[1] - x[1] * y[0]; return res;