inner¶

paddle. inner ( x, y, name=None ) [source]

Inner product of two input Tensor.

Ordinary inner product for 1-D Tensors, in higher dimensions a sum product over the last axes.

Parameters

x (Tensor) – An N-D Tensor or a Scalar Tensor. If its not a scalar Tensor, its last dimensions must match y’s.
y (Tensor) – An N-D Tensor or a Scalar Tensor. If its not a scalar Tensor, its last dimensions must match x’s.
name (str, optional) – Name for the operation (optional, default is None). For more information, please refer to Name.

Returns

The inner-product Tensor, the output shape is x.shape[:-1] + y.shape[:-1].

Return type

Tensor

Examples

           >>> import paddle
>>> x = paddle.arange(1, 7).reshape((2, 3)).astype('float32')
>>> y = paddle.arange(1, 10).reshape((3, 3)).astype('float32')
>>> out = paddle.inner(x, y)
>>> print(out)
Tensor(shape=[2, 3], dtype=float32, place=Place(cpu), stop_gradient=True,
[[14. , 32. , 50. ],
 [32. , 77. , 122.]])

          