如何使用Numpy求解给定矩阵中所有元素的和?
在本程序中,我们将使用numpy库中的sum()函数来求和numpy矩阵中的全部项。我们首先创建一个随机的numpy矩阵,然后求出所有元素的和。
算法
Step 1: Import numpy. Step 2: Create a random m×n matrix using the random() function. Step 3: Obtain the sum of all the elements in the matrix using the sum() function.
示例代码
import numpy as np matrix = np.random.rand(3,3) print("The numpy matrix is: \n",matrix) print("\nThe sum of the matrix is: ", np.sum(matrix))
输出
The numpy matrix is: [[0.66411969 0.43672579 0.48448593] [0.76110384 0.35869136 0.51509622] [0.22408857 0.17984855 0.33566272]] The sum of the matrix is: 3.9598226605128524
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