broadcast_shape

paddle. broadcast_shape ( x_shape: Sequence[int], y_shape: Sequence[int] ) → list[int] [source]

The function returns the shape of doing operation with broadcasting on tensors of x_shape and y_shape.

Note

If you want know more about broadcasting, please refer to Introduction to Tensor .

Parameters

• x_shape (list[int]|tuple[int]) – A shape of tensor.

• y_shape (list[int]|tuple[int]) – A shape of tensor.

Returns

list[int], the result shape.

Examples

>>> import paddle

>>> shape = paddle.broadcast_shape([2, 1, 3], [1, 3, 1])
>>> shape
[2, 3, 3]

>>> # shape = paddle.broadcast_shape([2, 1, 3], [3, 3, 1])
>>> # ValueError (terminated with error message).