scipy.sparse.dia_array.

dot

dia_array.dot(other)

Ordinary dot product

Returns:

sparse array/matrix or ndarray

Result of dot product. The type depends on other:

• If other is a scalar, the result is a sparse array/matrix.

• If other is an ndarray, the result is an ndarray.

Examples

Try it in your browser!

>>> import numpy as np
>>> from scipy.sparse import csr_array
>>> A = csr_array([[1, 2, 0], [0, 0, 3], [4, 0, 5]])
>>> v = np.array([1, 0, -1])
>>> A.dot(v)
array([ 1, -3, -1], dtype=int64)

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