test_simplify.py 文件源码

def test_issue_9398():
    from sympy import Number, cancel
    assert cancel(1e-14) != 0
    assert cancel(1e-14*I) != 0

    assert simplify(1e-14) != 0
    assert simplify(1e-14*I) != 0

    assert (I*Number(1.)*Number(10)**Number(-14)).simplify() != 0

    assert cancel(1e-20) != 0
    assert cancel(1e-20*I) != 0

    assert simplify(1e-20) != 0
    assert simplify(1e-20*I) != 0

    assert cancel(1e-100) != 0
    assert cancel(1e-100*I) != 0

    assert simplify(1e-100) != 0
    assert simplify(1e-100*I) != 0

    f = Float("1e-1000")
    assert cancel(f) != 0
    assert cancel(f*I) != 0

    assert simplify(f) != 0
    assert simplify(f*I) != 0