This is documentation for an old release of NumPy (version 1.14). Read this page in the documentation of the latest stable release (version 2.2).
numpy.matlib.identity¶
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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]])