hyperbolic.py 文件源码

def as_real_imag(self, deep=True, **hints):
        """
        Returns this function as a complex coordinate.
        """
        from sympy import cos, sin
        if self.args[0].is_real:
            if deep:
                hints['complex'] = False
                return (self.expand(deep, **hints), S.Zero)
            else:
                return (self, S.Zero)
        if deep:
            re, im = self.args[0].expand(deep, **hints).as_real_imag()
        else:
            re, im = self.args[0].as_real_imag()
        return (sinh(re)*cos(im), cosh(re)*sin(im))