scipy.linalg.sinhm¶
- scipy.linalg.sinhm(A)[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)类数组
输入数组。
- 退货
- sinhm(N,N)ndarray
的双曲矩阵正弦 A
示例
>>> 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]])