本文整理汇总了Python中numpy.polynomial.polynomial.polyval方法的典型用法代码示例。如果您正苦于以下问题：Python polynomial.polyval方法的具体用法？Python polynomial.polyval怎么用？Python polynomial.polyval使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类numpy.polynomial.polynomial的用法示例。
在下文中一共展示了polynomial.polyval方法的14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_hermeval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_hermeval(self):
#check empty input
assert_equal(herme.hermeval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Helist]
for i in range(10):
msg = "At i=%d" % i
tgt = y[i]
res = herme.hermeval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3):
dims = [2]*i
x = np.zeros(dims)
assert_equal(herme.hermeval(x, [1]).shape, dims)
assert_equal(herme.hermeval(x, [1, 0]).shape, dims)
assert_equal(herme.hermeval(x, [1, 0, 0]).shape, dims) 示例2: test_chebval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_chebval(self):
#check empty input
assert_equal(cheb.chebval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Tlist]
for i in range(10):
msg = "At i=%d" % i
tgt = y[i]
res = cheb.chebval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3):
dims = [2]*i
x = np.zeros(dims)
assert_equal(cheb.chebval(x, [1]).shape, dims)
assert_equal(cheb.chebval(x, [1, 0]).shape, dims)
assert_equal(cheb.chebval(x, [1, 0, 0]).shape, dims) 示例3: test_lagval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_lagval(self):
#check empty input
assert_equal(lag.lagval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Llist]
for i in range(7):
msg = "At i=%d" % i
tgt = y[i]
res = lag.lagval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3):
dims = [2]*i
x = np.zeros(dims)
assert_equal(lag.lagval(x, [1]).shape, dims)
assert_equal(lag.lagval(x, [1, 0]).shape, dims)
assert_equal(lag.lagval(x, [1, 0, 0]).shape, dims) 示例4: test_polyval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_polyval(self):
#check empty input
assert_equal(poly.polyval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [x**i for i in range(5)]
for i in range(5):
tgt = y[i]
res = poly.polyval(x, [0]*i + [1])
assert_almost_equal(res, tgt)
tgt = x*(x**2 - 1)
res = poly.polyval(x, [0, -1, 0, 1])
assert_almost_equal(res, tgt)
#check that shape is preserved
for i in range(3):
dims = [2]*i
x = np.zeros(dims)
assert_equal(poly.polyval(x, [1]).shape, dims)
assert_equal(poly.polyval(x, [1, 0]).shape, dims)
assert_equal(poly.polyval(x, [1, 0, 0]).shape, dims) 示例5: test_polyvander
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_polyvander(self):
# check for 1d x
x = np.arange(3)
v = poly.polyvander(x, 3)
assert_(v.shape == (3, 4))
for i in range(4):
coef = [0]*i + [1]
assert_almost_equal(v[..., i], poly.polyval(x, coef))
# check for 2d x
x = np.array([[1, 2], [3, 4], [5, 6]])
v = poly.polyvander(x, 3)
assert_(v.shape == (3, 2, 4))
for i in range(4):
coef = [0]*i + [1]
assert_almost_equal(v[..., i], poly.polyval(x, coef)) 示例6: test_hermval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_hermval(self):
#check empty input
assert_equal(herm.hermval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Hlist]
for i in range(10):
msg = "At i=%d" % i
tgt = y[i]
res = herm.hermval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3):
dims = [2]*i
x = np.zeros(dims)
assert_equal(herm.hermval(x, [1]).shape, dims)
assert_equal(herm.hermval(x, [1, 0]).shape, dims)
assert_equal(herm.hermval(x, [1, 0, 0]).shape, dims) 示例7: _campos_zeros
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def _campos_zeros(n):
"""
Return approximate zero locations of Bessel polynomials y_n(x) for order
`n` using polynomial fit (Campos-Calderon 2011)
"""
if n == 1:
return asarray([-1+0j])
s = npp_polyval(n, [0, 0, 2, 0, -3, 1])
b3 = npp_polyval(n, [16, -8]) / s
b2 = npp_polyval(n, [-24, -12, 12]) / s
b1 = npp_polyval(n, [8, 24, -12, -2]) / s
b0 = npp_polyval(n, [0, -6, 0, 5, -1]) / s
r = npp_polyval(n, [0, 0, 2, 1])
a1 = npp_polyval(n, [-6, -6]) / r
a2 = 6 / r
k = np.arange(1, n+1)
x = npp_polyval(k, [0, a1, a2])
y = npp_polyval(k, [b0, b1, b2, b3])
return x + 1j*y 示例8: test_hermeval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_hermeval(self) :
#check empty input
assert_equal(herme.hermeval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Helist]
for i in range(10) :
msg = "At i=%d" % i
ser = np.zeros
tgt = y[i]
res = herme.hermeval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3) :
dims = [2]*i
x = np.zeros(dims)
assert_equal(herme.hermeval(x, [1]).shape, dims)
assert_equal(herme.hermeval(x, [1, 0]).shape, dims)
assert_equal(herme.hermeval(x, [1, 0, 0]).shape, dims) 示例9: test_chebval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_chebval(self) :
#check empty input
assert_equal(cheb.chebval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Tlist]
for i in range(10) :
msg = "At i=%d" % i
tgt = y[i]
res = cheb.chebval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3) :
dims = [2]*i
x = np.zeros(dims)
assert_equal(cheb.chebval(x, [1]).shape, dims)
assert_equal(cheb.chebval(x, [1, 0]).shape, dims)
assert_equal(cheb.chebval(x, [1, 0, 0]).shape, dims) 示例10: test_lagval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_lagval(self) :
#check empty input
assert_equal(lag.lagval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Llist]
for i in range(7) :
msg = "At i=%d" % i
ser = np.zeros
tgt = y[i]
res = lag.lagval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3) :
dims = [2]*i
x = np.zeros(dims)
assert_equal(lag.lagval(x, [1]).shape, dims)
assert_equal(lag.lagval(x, [1, 0]).shape, dims)
assert_equal(lag.lagval(x, [1, 0, 0]).shape, dims) 示例11: test_polyval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_polyval(self) :
#check empty input
assert_equal(poly.polyval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [x**i for i in range(5)]
for i in range(5) :
tgt = y[i]
res = poly.polyval(x, [0]*i + [1])
assert_almost_equal(res, tgt)
tgt = x*(x**2 - 1)
res = poly.polyval(x, [0, -1, 0, 1])
assert_almost_equal(res, tgt)
#check that shape is preserved
for i in range(3) :
dims = [2]*i
x = np.zeros(dims)
assert_equal(poly.polyval(x, [1]).shape, dims)
assert_equal(poly.polyval(x, [1, 0]).shape, dims)
assert_equal(poly.polyval(x, [1, 0, 0]).shape, dims) 示例12: test_polyvander
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_polyvander(self) :
# check for 1d x
x = np.arange(3)
v = poly.polyvander(x, 3)
assert_(v.shape == (3, 4))
for i in range(4) :
coef = [0]*i + [1]
assert_almost_equal(v[..., i], poly.polyval(x, coef))
# check for 2d x
x = np.array([[1, 2], [3, 4], [5, 6]])
v = poly.polyvander(x, 3)
assert_(v.shape == (3, 2, 4))
for i in range(4) :
coef = [0]*i + [1]
assert_almost_equal(v[..., i], poly.polyval(x, coef)) 示例13: test_legval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_legval(self) :
#check empty input
assert_equal(leg.legval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Llist]
for i in range(10) :
msg = "At i=%d" % i
ser = np.zeros
tgt = y[i]
res = leg.legval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3) :
dims = [2]*i
x = np.zeros(dims)
assert_equal(leg.legval(x, [1]).shape, dims)
assert_equal(leg.legval(x, [1, 0]).shape, dims)
assert_equal(leg.legval(x, [1, 0, 0]).shape, dims) 示例14: test_hermval
# 需要导入模块: from numpy.polynomial import polynomial [as 别名]
# 或者: from numpy.polynomial.polynomial import polyval [as 别名]
def test_hermval(self) :
#check empty input
assert_equal(herm.hermval([], [1]).size, 0)
#check normal input)
x = np.linspace(-1, 1)
y = [polyval(x, c) for c in Hlist]
for i in range(10) :
msg = "At i=%d" % i
ser = np.zeros
tgt = y[i]
res = herm.hermval(x, [0]*i + [1])
assert_almost_equal(res, tgt, err_msg=msg)
#check that shape is preserved
for i in range(3) :
dims = [2]*i
x = np.zeros(dims)
assert_equal(herm.hermval(x, [1]).shape, dims)
assert_equal(herm.hermval(x, [1, 0]).shape, dims)
assert_equal(herm.hermval(x, [1, 0, 0]).shape, dims)