Complex implements FieldElement<Complex>, Serializable { public Complex asin() { if (isNaN) { return NaN; } return sqrt1z().add(this.multiply(I)).log().multiply(I.negate()); } Complex(double real);  Complex(double real, double imaginary); double abs(); Complex add(Complex addend); Complex add(double addend); Complex conjugate(); Complex divide(Complex divisor); Complex divide(double divisor); Complex reciprocal(); @Override boolean equals(Object other); static boolean equals(Complex x, Complex y, int maxUlps); static boolean equals(Complex x, Complex y); static boolean equals(Complex x, Complex y, double eps); static boolean equalsWithRelativeTolerance(Complex x, Complex y,
                                                      double eps); @Override int hashCode(); double getImaginary(); double getReal(); boolean isNaN(); boolean isInfinite(); Complex multiply(Complex factor); Complex multiply(final int factor); Complex multiply(double factor); Complex negate(); Complex subtract(Complex subtrahend); Complex subtract(double subtrahend); Complex acos(); Complex asin(); Complex atan(); Complex cos(); Complex cosh(); Complex exp(); Complex log(); Complex pow(Complex x); Complex pow(double x); Complex sin(); Complex sinh(); Complex sqrt(); Complex sqrt1z(); Complex tan(); Complex tanh(); double getArgument(); List<Complex> nthRoot(int n); static Complex valueOf(double realPart,
                                  double imaginaryPart); static Complex valueOf(double realPart); ComplexField getField(); @Override String toString(); static final Complex I; static final Complex NaN; static final Complex INF; static final Complex ONE; static final Complex ZERO; }
@Test public void testAsin() { Complex z = new Complex(3, 4); Complex expected = new Complex(0.633984, 2.30551); TestUtils.assertEquals(expected, z.asin(), 1.0e-5); }
@Test public void testAsinInf() { TestUtils.assertSame(Complex.NaN, oneInf.asin()); TestUtils.assertSame(Complex.NaN, oneNegInf.asin()); TestUtils.assertSame(Complex.NaN, infOne.asin()); TestUtils.assertSame(Complex.NaN, negInfOne.asin()); TestUtils.assertSame(Complex.NaN, infInf.asin()); TestUtils.assertSame(Complex.NaN, infNegInf.asin()); TestUtils.assertSame(Complex.NaN, negInfInf.asin()); TestUtils.assertSame(Complex.NaN, negInfNegInf.asin()); }