Python 中的 numpy.square()
哎哎哎:# t0]https://www . geeksforgeeks . org/num py-square-python/
numpy.square(arr，out = None，ufunc 'square') : 这个数学函数帮助用户计算数组中每个元素的平方值。
参数:
arr : *[array_like]* Input array or object
whose elements, we need to square.
返回:
An array with square value of each array.
代码#1:工作
# Python program explaining
# square () function
import numpy as np
arr1 = [1, -3, 15, -466]
print ("Square Value of arr1 : \n", np.square(arr1))
arr2 = [23 ,-56]
print ("\nSquare Value of arr2 : ", np.square(arr2))
输出:
Square Value of arr1 :
[ 1 9 225 217156]
Square Value of arr2 : [ 529 3136]
代码#2:处理复数
# Python program explaining
# square () function
import numpy as np
a = 4 + 3j
print("Square(4 + 3j) : ", np.square(a))
b = 16 + 13j
print("\nSquare value(16 + 13j) : ", np.square(b))
输出:
Square(4 + 3j) : (7+24j)
Square value(16 + 13j) : (87+416j)
代码# 3:numpy . square()的图形表示
# Python program explaining
# square () function
import numpy as np
import matplotlib.pyplot as plt
a = np.linspace(start = -5, stop = 5,
num = 6, endpoint = True)
print("Graphical Representation : \n", np.square(a))
plt.title("blue : with square\nred : without square")
plt.plot(a, np.square(a))
plt.plot(a, a, color = 'red')
plt.show()
输出:
Graphical Representation :
[ 25\. 9\. 1\. 1\. 9\. 25.]
参考文献:
https://docs . scipy . org/doc/numpy-1 . 13 . 0/reference/generated/numpy . absolute . html
。
