Python sign Exemples

Exemple #1

Fichier : test_functions.py Projet : raphaelquast/symengine.py

def test_sign():
    assert sign(1.2) == 1
    assert sign(-1.2) == -1
    assert sign(3 * I) == I
    assert sign(-3 * I) == -I
    assert sign(0) == 0
    assert sign(nan) == nan

Exemple #2

def test_sign():
    x = Symbol("x")
    e1 = sympy.sign(sympy.Symbol("x"))
    e2 = sign(x)
    assert sympify(e1) == e2
    assert e2._sympy_() == e1