FuncDesignerExt.py 文件源码

def arccosh(inp):
    if isinstance(inp, ooarray) and inp.dtype == object:
        return ooarray([arccosh(elem) for elem in inp])
    if not isinstance(inp, oofun):
        return np.arccosh(inp)
    # TODO: move it outside of arccosh definition
    def interval(arg_inf, arg_sup):
        raise 'interval for arccosh is unimplemented yet'
    r = oofun(np.arccosh, inp, d = lambda x: FDmisc.Diag(1.0/sqrt(x**2 - 1)), vectorized = True, interval = interval)
    return r