本文整理汇总了Python中sympy.core.Symbol类的典型用法代码示例。如果您正苦于以下问题：Python Symbol类的具体用法？Python Symbol怎么用？Python Symbol使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Symbol类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_other_symbol
def test_other_symbol():
x = Symbol('x', integer=True)
assert x.is_integer is True
assert x.is_real is True
x = Symbol('x', integer=True, nonnegative=True)
assert x.is_integer is True
assert x.is_nonnegative is True
assert x.is_negative is False
assert x.is_positive is None
x = Symbol('x', integer=True, nonpositive=True)
assert x.is_integer is True
assert x.is_nonpositive is True
assert x.is_positive is False
assert x.is_negative is None
x = Symbol('x', odd=True)
assert x.is_odd is True
assert x.is_even is False
assert x.is_integer is True
x = Symbol('x', odd=False)
assert x.is_odd is False
assert x.is_even is None
assert x.is_integer is None
x = Symbol('x', even=True)
assert x.is_even is True
assert x.is_odd is False
assert x.is_integer is True
x = Symbol('x', even=False)
assert x.is_even is False
assert x.is_odd is None
assert x.is_integer is None
x = Symbol('x', integer=True, nonnegative=True)
assert x.is_integer is True
assert x.is_nonnegative is True
x = Symbol('x', integer=True, nonpositive=True)
assert x.is_integer is True
assert x.is_nonpositive is True
with raises(AttributeError):
x.is_real = False示例2: test_sanitize_assumptions
def test_sanitize_assumptions():
# issue 6666
for cls in (Symbol, Dummy, Wild):
x = cls('x', real=1, positive=0)
assert x.is_real is True
assert x.is_positive is False
assert cls('', real=True, positive=None).is_positive is None
raises(ValueError, lambda: cls('', commutative=None))
raises(ValueError, lambda: Symbol._sanitize(dict(commutative=None)))示例3: test_other_symbol
def test_other_symbol():
x = Symbol("x", integer=True)
assert x.is_integer is True
assert x.is_real is True
x = Symbol("x", integer=True, nonnegative=True)
assert x.is_integer is True
assert x.is_nonnegative is True
assert x.is_negative is False
assert x.is_positive is None
x = Symbol("x", integer=True, nonpositive=True)
assert x.is_integer is True
assert x.is_nonpositive is True
assert x.is_positive is False
assert x.is_negative is None
x = Symbol("x", odd=True)
assert x.is_odd is True
assert x.is_even is False
assert x.is_integer is True
x = Symbol("x", odd=False)
assert x.is_odd is False
assert x.is_even is None
assert x.is_integer is None
x = Symbol("x", even=True)
assert x.is_even is True
assert x.is_odd is False
assert x.is_integer is True
x = Symbol("x", even=False)
assert x.is_even is False
assert x.is_odd is None
assert x.is_integer is None
x = Symbol("x", integer=True, nonnegative=True)
assert x.is_integer is True
assert x.is_nonnegative is True
x = Symbol("x", integer=True, nonpositive=True)
assert x.is_integer is True
assert x.is_nonpositive is True
with raises(AttributeError):
x.is_real = False
x = Symbol("x", algebraic=True)
assert x.is_transcendental is False
x = Symbol("x", transcendental=True)
assert x.is_algebraic is False
assert x.is_rational is False
assert x.is_integer is False