本文整理匯總了Python中cmath.tanh方法的典型用法代碼示例。如果您正苦於以下問題：Python cmath.tanh方法的具體用法？Python cmath.tanh怎麽用？Python cmath.tanh使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類cmath的用法示例。
在下文中一共展示了cmath.tanh方法的9個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: testTanhSign
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def testTanhSign(self):
for z in complex_zeros:
self.assertComplexIdentical(cmath.tanh(z), z)
# The algorithm used for atan and atanh makes use of the system
# log1p function; If that system function doesn't respect the sign
# of zero, then atan and atanh will also have difficulties with
# the sign of complex zeros. 示例2: TANH
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def TANH(df, price='Close'):
"""
Hyperbolic Tangent
Returns: list of floats = jhta.TANH(df, price='Close')
"""
return [cmath.tanh(df[price][i]).real for i in range(len(df[price]))] 示例3: test_tanh
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def test_tanh(self):
self.assertAlmostEqual(complex(1.00071, 0.00490826),
cmath.tanh(complex(3, 4))) 示例4: test_trig_hyperb_basic
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def test_trig_hyperb_basic():
for x in (list(range(100)) + list(range(-100,0))):
t = x / 4.1
assert cos(mpf(t)).ae(math.cos(t))
assert sin(mpf(t)).ae(math.sin(t))
assert tan(mpf(t)).ae(math.tan(t))
assert cosh(mpf(t)).ae(math.cosh(t))
assert sinh(mpf(t)).ae(math.sinh(t))
assert tanh(mpf(t)).ae(math.tanh(t))
assert sin(1+1j).ae(cmath.sin(1+1j))
assert sin(-4-3.6j).ae(cmath.sin(-4-3.6j))
assert cos(1+1j).ae(cmath.cos(1+1j))
assert cos(-4-3.6j).ae(cmath.cos(-4-3.6j)) 示例5: test_invhyperb_inaccuracy
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def test_invhyperb_inaccuracy():
mp.dps = 15
assert (asinh(1e-5)*10**5).ae(0.99999999998333333)
assert (asinh(1e-10)*10**10).ae(1)
assert (asinh(1e-50)*10**50).ae(1)
assert (asinh(-1e-5)*10**5).ae(-0.99999999998333333)
assert (asinh(-1e-10)*10**10).ae(-1)
assert (asinh(-1e-50)*10**50).ae(-1)
assert asinh(10**20).ae(46.744849040440862)
assert asinh(-10**20).ae(-46.744849040440862)
assert (tanh(1e-10)*10**10).ae(1)
assert (tanh(-1e-10)*10**10).ae(-1)
assert (atanh(1e-10)*10**10).ae(1)
assert (atanh(-1e-10)*10**10).ae(-1) 示例6: test_complex_functions
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def test_complex_functions():
for x in (list(range(10)) + list(range(-10,0))):
for y in (list(range(10)) + list(range(-10,0))):
z = complex(x, y)/4.3 + 0.01j
assert exp(mpc(z)).ae(cmath.exp(z))
assert log(mpc(z)).ae(cmath.log(z))
assert cos(mpc(z)).ae(cmath.cos(z))
assert sin(mpc(z)).ae(cmath.sin(z))
assert tan(mpc(z)).ae(cmath.tan(z))
assert sinh(mpc(z)).ae(cmath.sinh(z))
assert cosh(mpc(z)).ae(cmath.cosh(z))
assert tanh(mpc(z)).ae(cmath.tanh(z)) 示例7: test_tanh
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def test_tanh():
mp.dps = 15
assert tanh(0) == 0
assert tanh(inf) == 1
assert tanh(-inf) == -1
assert isnan(tanh(nan))
assert tanh(mpc('inf', '0')) == 1 示例8: test_cmath_matches_math
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def test_cmath_matches_math(self):
# check that corresponding cmath and math functions are equal
# for floats in the appropriate range
# test_values in (0, 1)
test_values = [0.01, 0.1, 0.2, 0.5, 0.9, 0.99]
# test_values for functions defined on [-1., 1.]
unit_interval = test_values + [-x for x in test_values] + \
[0., 1., -1.]
# test_values for log, log10, sqrt
positive = test_values + [1.] + [1./x for x in test_values]
nonnegative = [0.] + positive
# test_values for functions defined on the whole real line
real_line = [0.] + positive + [-x for x in positive]
test_functions = {
'acos' : unit_interval,
'asin' : unit_interval,
'atan' : real_line,
'cos' : real_line,
'cosh' : real_line,
'exp' : real_line,
'log' : positive,
'log10' : positive,
'sin' : real_line,
'sinh' : real_line,
'sqrt' : nonnegative,
'tan' : real_line,
'tanh' : real_line}
for fn, values in test_functions.items():
float_fn = getattr(math, fn)
complex_fn = getattr(cmath, fn)
for v in values:
z = complex_fn(v)
self.rAssertAlmostEqual(float_fn(v), z.real)
self.assertEqual(0., z.imag)
# test two-argument version of log with various bases
for base in [0.5, 2., 10.]:
for v in positive:
z = cmath.log(v, base)
self.rAssertAlmostEqual(math.log(v, base), z.real)
self.assertEqual(0., z.imag) 示例9: test_perturbation_rounding
# 需要導入模塊: import cmath [as 別名]
# 或者: from cmath import tanh [as 別名]
def test_perturbation_rounding():
mp.dps = 100
a = pi/10**50
b = -pi/10**50
c = 1 + a
d = 1 + b
mp.dps = 15
assert exp(a) == 1
assert exp(a, rounding='c') > 1
assert exp(b, rounding='c') == 1
assert exp(a, rounding='f') == 1
assert exp(b, rounding='f') < 1
assert cos(a) == 1
assert cos(a, rounding='c') == 1
assert cos(b, rounding='c') == 1
assert cos(a, rounding='f') < 1
assert cos(b, rounding='f') < 1
for f in [sin, atan, asinh, tanh]:
assert f(a) == +a
assert f(a, rounding='c') > a
assert f(a, rounding='f') < a
assert f(b) == +b
assert f(b, rounding='c') > b
assert f(b, rounding='f') < b
for f in [asin, tan, sinh, atanh]:
assert f(a) == +a
assert f(b) == +b
assert f(a, rounding='c') > a
assert f(b, rounding='c') > b
assert f(a, rounding='f') < a
assert f(b, rounding='f') < b
assert ln(c) == +a
assert ln(d) == +b
assert ln(c, rounding='c') > a
assert ln(c, rounding='f') < a
assert ln(d, rounding='c') > b
assert ln(d, rounding='f') < b
assert cosh(a) == 1
assert cosh(b) == 1
assert cosh(a, rounding='c') > 1
assert cosh(b, rounding='c') > 1
assert cosh(a, rounding='f') == 1
assert cosh(b, rounding='f') == 1