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python how to multiply two matrices using numpy

Gaurav IIT Mandi answered on November 20, 2022 Popularity 10/10 Helpfulness 5/10

answer python how to multiply two matrices using numpy

related python numpy how to do a matrix multiplication for a 2-d numpy array

python how to multiply two matrices using numpy

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# For 2-D array, it is matrix multiplication 
import numpy.matlib 
import numpy as np 

a = [[1,0],[0,1]] 
b = [[4,1],[2,2]] 
print np.matmul(a,b)

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Source: www.tutorialspoint.com

Tags: numpy python using

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Contributed on Jan 02 2023

Gaurav IIT Mandi

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python numpy how to do a matrix multiplication for a 2-d numpy array

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import numpy as np

arr = np.array([[1, 2, 3], [4, 5, 6]])
arr2 = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])

multiplied = arr.dot(arr2)
print(multiplied)

"""


The columns on the arr must be the same
for the rows in arr2 otherwise it will
raise an exception


"""

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Source: Grepper

Tags: numpy nump

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Contributed on Nov 20 2022

French Guy234

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python how to multiply two matrices using numpy

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