NumPy tanh()方法

此函数用于计算作为参数传递的数组的所有元素的双曲正切。

句法

numpy.tanh(array[, out] )

参数

  1. array:要计算切线值(以弧度为单位)的数组元素。
  2. out:输出数组的形状。

返回

返回具有三角正切正弦的数组。

例子

import numpy as np
import math
arr = np.array([0, math.pi/4, 3*math.pi/2, math.pi/6])
print("Input Array:", arr)
print("tanh Array:", end=" ")
tanharr = np.tanh(arr)
print(tanharr)

输出

Input Array: [0.         0.78539816 4.71238898 0.52359878]
tanh Array: [0.         0.6557942  0.99983861 0.48047278]

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