def test_erfc(): x = Symbol("x") e1 = sympy.erfc(sympy.Symbol("x")) e2 = erfc(x) assert sympify(e1) == e2 assert e2._sympy_() == e1
def test_erfc(): assert erfc(nan) == nan assert erfc(oo) == 0 assert erfc(-oo) == 2 assert erfc(0) == 1