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Python | Numpy matrix.cumsum()

  • Last Updated : 12 Apr, 2019

With the help of Numpy matrix.cumsum() method, we are able to find a cumulative sum of a given matrix and gives output as one dimensional matrix.

Syntax : matrix.cumsum()

Return : Return cumulative sum of matrix

Example #1 :
In this example we can see that with the help of matrix.cumsum() method we are able to find the cumulative sum of a given array.




# import the important module in python
import numpy as np
         
# make matrix with numpy
gfg = np.matrix('[6, 2, 3]')
         
# applying matrix.cumsum() method
geeks = gfg.cumsum()
   
print(geeks)
Output:
[[ 6  8 11]]

Example #2 :




# import the important module in python
import numpy as np
         
# make a matrix with numpy
gfg = np.matrix('[1, 2, 3; 4, 5, 6]')
         
# applying matrix.cumsum() method
geeks = gfg.cumsum()
   
print(geeks)
Output:
[[ 1  3  6 10 15 21]]
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