Python _exp_is_pow示例

示例#1

文件： test_function.py 项目： techiepriyansh/sympy

def test_issue_11159():
    # Tests Application._eval_subs
    with _exp_is_pow(False):
        expr1 = E
        expr0 = expr1 * expr1
        expr1 = expr0.subs(expr1,expr0)
        assert expr0 == expr1
    with _exp_is_pow(True):
        expr1 = E
        expr0 = expr1 * expr1
        expr2 = expr0.subs(expr1, expr0)
        assert expr2 == E ** 4

示例#2

文件： test_str.py 项目： stevenleeS0ht/sympy

def test_Exp():
    assert str(E) == "E"
    with _exp_is_pow(True):
        assert str(exp(x)) == "E**x"

示例#3

 def func_wrap():
     with _exp_is_pow(True):
         func()
     with _exp_is_pow(False):
         func()