scipy.linalg.
sinhm#
- scipy.linalg.sinhm(A)[源代码][源代码]#
计算双曲矩阵正弦。
此例程使用 expm 计算矩阵指数。
- 参数:
- A(N, N) array_like
输入数组。
- 返回:
- sinhm(N, N) ndarray
矩阵 A 的双曲正弦
示例
>>> import numpy as np >>> from scipy.linalg import tanhm, sinhm, coshm >>> a = np.array([[1.0, 3.0], [1.0, 4.0]]) >>> s = sinhm(a) >>> s array([[ 10.57300653, 39.28826594], [ 13.09608865, 49.86127247]])
验证 tanhm(a) = sinhm(a).dot(inv(coshm(a)))
>>> t = tanhm(a) >>> c = coshm(a) >>> t - s.dot(np.linalg.inv(c)) array([[ 2.72004641e-15, 4.55191440e-15], [ 0.00000000e+00, -5.55111512e-16]])