Orloci { public static double distance(double[] v1,double[] v2){ Asserts.assertHasAllZeros(v1); Asserts.assertHasAllZeros(v2); return Math.sqrt(2*(1-CommonStats.dotProduct(v1, v2)/(CommonStats.norm(v1)*CommonStats.norm(v2)))); }  static double distance(double[] v1,double[] v2);  }
@Test public void test1(){ double[] v1 = new double[]{8,3,7}; double[] v2 = new double[]{9,8,4}; Asserts.assertEqualLength(v1, v2); double res = Orloci.distance(v1, v2); Asserts.assertEquals(res, 0.48006910221375422319); }
@Test public void test2(){ double[] v1 = new double[]{8,-32,7,0,-45}; double[] v2 = new double[]{97,-78,41,-4,-78}; Asserts.assertEqualLength(v1, v2); double res = Orloci.distance(v1, v2); Asserts.assertEquals(res, 0.59325007485782924257); }
@Test public void test3(){ double[] v1 = new double[]{248.124,-321.574,788.14,0.001,-459.298}; double[] v2 = new double[]{97.145,-78.658,417.0004,-4.02,-7865.3594}; Asserts.assertEqualLength(v1, v2); double res = Orloci.distance(v1, v2); Asserts.assertEquals(res, 0.99264848216636084272); }