Python | Numpy matrix.trace()

Python | Numpy matrix.sum()

Last Updated : 20 May, 2019

With the help of matrix.sum() method, we are able to find the sum of values in a matrix by using the same method.

Syntax : matrix.sum() Return : Return sum of values in a matrix

Example #1 : In this example we are able to find the sum of values in a matrix by using matrix.sum() method.

Python3 1=1

# 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:

Example #2 :

Python3 1==

# 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]]

Python | Numpy matrix.trace()

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