Python | Numpy matrix.sum()
借助**matrix.sum()**方法，我们可以用同样的方法求出矩阵中值的和。
语法:
matrix.sum()返回:返回矩阵中值的总和
示例#1 :
在本例中，我们能够使用matrix.sum()方法找到矩阵中值的总和。
# import the important module in python
import numpy as np
# make matrix with numpy
gfg = np.matrix('[4, 1; 12, 3]')
# applying matrix.sum() method
geek = gfg.sum()
print(geek)
Output:
20
例 2 :
# import the important module in python
import numpy as np
# make matrix with numpy
gfg = np.matrix('[4, 1, 9; 12, 3, 1; 4, 5, 6]')
# applying matrix.sum() method
geek = gfg.sum(axis = 1)
print(geek)
Output:
[[14]
[16]
[15]]
