public void JacobiArcsnComplexArgTest() { var z = new[] { new Complex(0.0115779438837883, 0.00215513498962569), new Complex(0.0251305156397967, -0.0159972042786677), new Complex(1.4511560737138, -0.480192562215063), new Complex(-1.8128943757431, 0.175402508876567), new Complex(0.974889810203627, 0.317370944403016), }; var m = new[] { .82872474670, .95465479750, .41588039490, .79913716820, .22263345920, }; var ans = new[] { "0.011577520035845973+0.002154873907338315 i", "0.02513162775967239-0.01598866500104887 i", "1.0366906460437097-0.0928117050540744 i", "-0.9833652385779392+0.0168760678403997 i", "0.8497782949947773+0.1722870976144199 i", }; for (int i = 0; i < z.Length; i++) { var sn = Parse(ans[i]); var arcsn = Jacobi.arcsn(sn, m[i]); var ex = z[i]; Assert.IsTrue(Complex.Abs(arcsn - ex) < 1e-14); var f = Jacobi.arcsnComplex(m[i]); var a2 = f(sn); Assert.AreEqual(arcsn, a2); } }