bundles / numpy 2.5.0.dev0+git20251130.2de293a / numpy / matlib / identity

function

`numpy.matlib:identity`

source: build-install/usr/lib/python3.14/site-packages/numpy/matlib.py :155

Signature

def identity ( n , dtype = None )

Summary

Returns the square identity matrix of given size.

Parameters

n : int: Size of the returned identity matrix.
dtype : data-type, optional: Data-type of the output. Defaults to float.

Returns

out : matrix: n x n matrix with its main diagonal set to one, and all other elements zero.

Examples

import numpy.matlib
np.matlib.identity(3, dtype=int)

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See also

matlib.eye: More general matrix identity function.
numpy.identity: Equivalent array function.

Aliases

numpy.matlib.identity