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Specifications and Common Mistakes

- Specifications and Common Mistakes:

- Misspellings or punctuation mistakes,incorrect formulas, abnormal display.

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mindspore.ops.mv

mindspore.ops.mv(mat, vec)

Multiplies matrix mat and vector vec.

If mat is a Tensor with $(N,M)$, vec is a 1-D Tensor of size $M$, out will be 1-D of size $N$.

Parameters

• mat (Tensor) – Input matrix of shape $(N,M)$.

• vec (Tensor) – Input vector of shape $(M,)$.

Returns

Tensor, the shape of the output Tensor is $(N,)$.

Raises

• TypeError – If mat or vec is not a Tensor.

• ValueError – If mat is not a 2-D Tensor or vec is not a 1-D Tensor.

Supported Platforms:

Ascend GPU CPU

Examples

>>> import numpy as np
>>> from mindspore import Tensor, ops
>>> mat = Tensor(np.array([[3., 4.], [1., 6.], [1., 3.]]).astype(np.float32))
>>> vec = Tensor(np.array([1., 2.]).astype(np.float32))
>>> output = ops.mv(mat, vec)
>>> print(output)
[11. 13. 7.]