public static ComplexNumber tanh(ComplexNumber z)
{
ComplexNumber z2 = ComplexMathUtils.exp(z);
ComplexNumber z3 = ComplexMathUtils.exp(ComplexMathUtils.multiply(z, -1));
return(ComplexMathUtils.divide(ComplexMathUtils.subtract(z2, z3), ComplexMathUtils.add(z2, z3)));
}
public static ComplexNumber asin(ComplexNumber z)
{
ArgChecker.notNull(z, "z");
return(ComplexMathUtils.multiply(NEGATIVE_I, ComplexMathUtils.log(ComplexMathUtils.add(ComplexMathUtils.multiply(I, z), ComplexMathUtils.sqrt(ComplexMathUtils.subtract(1, ComplexMathUtils.multiply(z, z)))))));
}
public static ComplexNumber acosh(ComplexNumber z)
{
ArgChecker.notNull(z, "z");
return(ComplexMathUtils.log(ComplexMathUtils.add(z, ComplexMathUtils.sqrt(ComplexMathUtils.subtract(ComplexMathUtils.multiply(z, z), 1)))));
}
public static ComplexNumber tan(ComplexNumber z)
{
ComplexNumber b = ComplexMathUtils.exp(ComplexMathUtils.multiply(ComplexMathUtils.multiply(I, 2), z));
return(ComplexMathUtils.divide(ComplexMathUtils.subtract(b, 1), ComplexMathUtils.multiply(I, ComplexMathUtils.add(b, 1))));
}