COO.dot

COO.dot(other)[source]

Performs the equivalent of x.dot(y) for COO.

Parameters

other (Union[COO, numpy.ndarray, scipy.sparse.spmatrix]) – The second operand of the dot product operation.

Returns

The result of the dot product. If the result turns out to be dense, then a dense array is returned, otherwise, a sparse array.

Return type

{COO, numpy.ndarray}

Raises

ValueError – If all arguments don’t have zero fill-values.

See also

dot()

Equivalent function for two arguments.

numpy.dot

Numpy equivalent function.

scipy.sparse.coo_matrix.dot()

Scipy equivalent function.

Examples

>>> x = np.arange(4).reshape((2, 2))
>>> s = COO.from_numpy(x)
>>> s.dot(s) # doctest: +SKIP
array([[ 2,  3],
       [ 6, 11]], dtype=int64)