scipy.linalg.
tanhm#
- scipy.linalg.tanhm(A)[source]#
- Compute the hyperbolic matrix tangent. - This routine uses expm to compute the matrix exponentials. - Parameters:
- A(N, N) array_like
- Input array 
 
- Returns:
- tanhm(N, N) ndarray
- Hyperbolic matrix tangent of A 
 
 - Examples - >>> import numpy as np >>> from scipy.linalg import tanhm, sinhm, coshm >>> a = np.array([[1.0, 3.0], [1.0, 4.0]]) >>> t = tanhm(a) >>> t array([[ 0.3428582 , 0.51987926], [ 0.17329309, 0.86273746]]) - Verify tanhm(a) = sinhm(a).dot(inv(coshm(a))) - >>> s = sinhm(a) >>> c = coshm(a) >>> t - s.dot(np.linalg.inv(c)) array([[ 2.72004641e-15, 4.55191440e-15], [ 0.00000000e+00, -5.55111512e-16]])