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numpy.identity(n, dtype=None)
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Return the identity array.
The identity array is a square array with ones on the main diagonal.
Parameters: n : int
Number of rows (and columns) in
n
xn
output.dtype : data-type, optional
Data-type of the output. Defaults to
float
.Returns: out : ndarray
n
xn
array with its main diagonal set to one, and all other elements 0.Examples
>>> np.identity(3) array([[ 1., 0., 0.], [ 0., 1., 0.], [ 0., 0., 1.]])
numpy.identity()
2017-01-10 18:14:23
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