numpy.identity() in Python
Last Updated :
05 Aug, 2021
numpy.identity(n, dtype = None) : Return a identity matrix i.e. a square matrix with ones on the main diagonal.
Parameters :
n : [int] Dimension n x n of output array
dtype : [optional, float(by Default)] Data type of returned array.
Returns :
identity array of dimension n x n, with its main diagonal set to one, and all other elements 0.
Example:
Python
import numpy as geek
b = geek.identity( 2 , dtype = float )
print ( "Matrix b : \n" , b)
a = geek.identity( 4 )
print ( "\nMatrix a : \n" , a)
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Output :
Matrix b :
[[ 1. 0.]
[ 0. 1.]]
Matrix a :
[[ 1. 0. 0. 0.]
[ 0. 1. 0. 0.]
[ 0. 0. 1. 0.]
[ 0. 0. 0. 1.]]
Note :
These codes won’t run on online-ID. Please run them on your systems to explore the working.
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