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numpy.matlib.identity()

numpy.matlib.identity(n, dtype=None) [source]

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.

See also

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

Examples

>>> import numpy.matlib
>>> np.matlib.identity(3, dtype=int)
matrix([[1, 0, 0],
        [0, 1, 0],
        [0, 0, 1]])

Links:

https://docs.scipy.org/doc/numpy-1.11.0/reference/generated/numpy.matlib.identity.html

doc_NumPy

2025-01-10 15:47:30

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