本文整理汇总了Python中sympy.E类的典型用法代码示例。如果您正苦于以下问题：Python E类的具体用法？Python E怎么用？Python E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E类的6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_issue1512
def test_issue1512():
assert abs(pi._evalf(50) - 3.14159265358979) < 1e-10
assert abs(E._evalf(50) - 2.71828182845905) < 1e-10
assert abs(Catalan._evalf(50) - 0.915965594177219) < 1e-10
assert abs(EulerGamma._evalf(50) - 0.577215664901533) < 1e-10
assert abs(GoldenRatio._evalf(50) - 1.61803398874989) < 1e-10
x = Symbol("x")
assert (pi+x).evalf() == pi.evalf()+x
assert (E+x).evalf() == E.evalf()+x
assert (Catalan+x).evalf() == Catalan.evalf()+x
assert (EulerGamma+x).evalf() == EulerGamma.evalf()+x
assert (GoldenRatio+x).evalf() == GoldenRatio.evalf()+x示例2: test_acceleration
def test_acceleration():
e = (1 + 1/n)**n
assert round(richardson(e, n, 10, 20).evalf(), 10) == round(E.evalf(), 10)
A = Sum(Integer(-1)**(k + 1) / k, (k, 1, n))
assert round(shanks(A, n, 25).evalf(), 4) == round(log(2).evalf(), 4)
assert round(shanks(A, n, 25, 5).evalf(), 10) == round(log(2).evalf(), 10)示例3: test_sympy
def test_sympy():
x = Symbol('x', real = True)
assert -oo < oo
assert not(-1.5 < -oo)
assert (1 - exp(x)).is_negative is None
assert Matrix([[1, 2], [3, 4]])**Integer(2) == Matrix([[7, 10], [15, 22]])
assertAlmostEqual(E._evalf(50), math.e)
assert solve(1/x, x) == [] # issue 1694
assert solve(-(1 + x)/(2 + x)**2 + 1/(2 + x), x) == [] # issue 1694
assert limit(1 + 1/x, x, 0, dir='-') == -oo
assert limit(1/x**2, x, 0, dir='-') == oo
assert sympify(u'45') == 45 # issue 2508示例4: test_fcode_NumberSymbol
def test_fcode_NumberSymbol():
prec = 17
p = FCodePrinter()
assert fcode(Catalan) == ' parameter (Catalan = %sd0)\n Catalan' % Catalan.evalf(prec)
assert fcode(EulerGamma) == ' parameter (EulerGamma = %sd0)\n EulerGamma' % EulerGamma.evalf(prec)
assert fcode(E) == ' parameter (E = %sd0)\n E' % E.evalf(prec)
assert fcode(GoldenRatio) == ' parameter (GoldenRatio = %sd0)\n GoldenRatio' % GoldenRatio.evalf(prec)
assert fcode(pi) == ' parameter (pi = %sd0)\n pi' % pi.evalf(prec)
assert fcode(
pi, precision=5) == ' parameter (pi = %sd0)\n pi' % pi.evalf(5)
assert fcode(Catalan, human=False) == (set(
[(Catalan, p._print(Catalan.evalf(prec)))]), set([]), ' Catalan')
assert fcode(EulerGamma, human=False) == (set([(EulerGamma, p._print(
EulerGamma.evalf(prec)))]), set([]), ' EulerGamma')
assert fcode(E, human=False) == (
set([(E, p._print(E.evalf(prec)))]), set([]), ' E')
assert fcode(GoldenRatio, human=False) == (set([(GoldenRatio, p._print(
GoldenRatio.evalf(prec)))]), set([]), ' GoldenRatio')
assert fcode(pi, human=False) == (
set([(pi, p._print(pi.evalf(prec)))]), set([]), ' pi')
assert fcode(pi, precision=5, human=False) == (
set([(pi, p._print(pi.evalf(5)))]), set([]), ' pi')示例5: test_fcode_NumberSymbol
def test_fcode_NumberSymbol():
assert fcode(Catalan) == ' parameter (Catalan = 0.915965594177219)\n Catalan'
assert fcode(EulerGamma) == ' parameter (EulerGamma = 0.577215664901533)\n EulerGamma'
assert fcode(E) == ' parameter (E = 2.71828182845905)\n E'
assert fcode(GoldenRatio) == ' parameter (GoldenRatio = 1.61803398874989)\n GoldenRatio'
assert fcode(pi) == ' parameter (pi = 3.14159265358979)\n pi'
assert fcode(pi,precision=5) == ' parameter (pi = 3.1416)\n pi'
assert fcode(Catalan,human=False) == ([('Catalan', Catalan.evalf(15))], set([]), ' Catalan')
assert fcode(EulerGamma,human=False) == ([('EulerGamma', EulerGamma.evalf(15))], set([]), ' EulerGamma')
assert fcode(E,human=False) == ([('E', E.evalf(15))], set([]), ' E')
assert fcode(GoldenRatio,human=False) == ([('GoldenRatio', GoldenRatio.evalf(15))], set([]), ' GoldenRatio')
assert fcode(pi,human=False) == ([('pi', pi.evalf(15))], set([]), ' pi')
assert fcode(pi,precision=5,human=False) == ([('pi', pi.evalf(5))], set([]), ' pi')示例6: test_fcode_NumberSymbol
def test_fcode_NumberSymbol():
p = FCodePrinter()
assert fcode(Catalan) == ' parameter (Catalan = 0.915965594177219d0)\n Catalan'
assert fcode(EulerGamma) == ' parameter (EulerGamma = 0.577215664901533d0)\n EulerGamma'
assert fcode(E) == ' parameter (E = 2.71828182845905d0)\n E'
assert fcode(GoldenRatio) == ' parameter (GoldenRatio = 1.61803398874989d0)\n GoldenRatio'
assert fcode(pi) == ' parameter (pi = 3.14159265358979d0)\n pi'
assert fcode(pi,precision=5) == ' parameter (pi = 3.1416d0)\n pi'
assert fcode(Catalan,human=False) == (set([(Catalan, p._print(Catalan.evalf(15)))]), set([]), ' Catalan')
assert fcode(EulerGamma,human=False) == (set([(EulerGamma, p._print(EulerGamma.evalf(15)))]), set([]), ' EulerGamma')
assert fcode(E,human=False) == (set([(E, p._print(E.evalf(15)))]), set([]), ' E')
assert fcode(GoldenRatio,human=False) == (set([(GoldenRatio, p._print(GoldenRatio.evalf(15)))]), set([]), ' GoldenRatio')
assert fcode(pi,human=False) == (set([(pi, p._print(pi.evalf(15)))]), set([]), ' pi')
assert fcode(pi,precision=5,human=False) == (set([(pi, p._print(pi.evalf(5)))]), set([]), ' pi')