The numpy.tanh()is a mathematical function that helps user to calculate hyperbolic tangent for all x(being the array elements).
Equivalent to np.sinh(x) / np.cosh(x) or -1j * np.tan(1j*x).
Syntax : numpy.tanh(x[, out]) = ufunc ‘tanh’)
Parameters :array : [array_like] elements are in radians.
2pi Radians = 36o degreesReturn : An array with hyperbolic tangent of x for all x i.e. array elements
Code #1 : Working
# Python3 program explaining # tanh() function import numpy as np import math in_array = [0, math.pi / 2, np.pi / 3, np.pi] print ("Input array : \n", in_array) tanh_Values = np.tanh(in_array) print ("\nTangent Hyperbolic values : \n", tanh_Values) |
Output :
Input array : [0, 1.5707963267948966, 1.0471975511965976, 3.141592653589793] Tangent Hyperbolic values : [ 0. 0.91715234 0.78071444 0.99627208]
Code #2 : Graphical representation
# Python program showing Graphical # representation of tanh() function import numpy as np import matplotlib.pyplot as plt in_array = np.linspace(-np.pi, np.pi, 12) out_array = np.tanh(in_array) print("in_array : ", in_array) print("\nout_array : ", out_array) # red for numpy.tanh() plt.plot(in_array, out_array, color = 'red', marker = "o") plt.title("numpy.tanh()") plt.xlabel("X") plt.ylabel("Y") plt.show() |
Output :
in_array : [-3.14159265 -2.57039399 -1.99919533 -1.42799666 -0.856798 -0.28559933 0.28559933 0.856798 1.42799666 1.99919533 2.57039399 3.14159265] out_array : [-0.99627208 -0.98836197 -0.96397069 -0.89125532 -0.69460424 -0.27807943 0.27807943 0.69460424 0.89125532 0.96397069 0.98836197 0.99627208]
References : https://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.tanh.html#numpy.tanh
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