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Computes the shape of a broadcast given known shapes.

    shape_x, shape_y

When shape_x and shape_y are fully known TensorShapes this computes a TensorShape which is the shape of the result of a broadcasting op applied in tensors of shapes shape_x and shape_y.

For example, if shape_x is [1, 2, 3] and shape_y is [5, 1, 3], the result is a TensorShape whose value is [5, 2, 3].

This is useful when validating the result of a broadcasting operation when the tensors have statically known shapes.


  • shape_x: A TensorShape
  • shape_y: A TensorShape


A TensorShape representing the broadcasted shape.


  • ValueError: If the two shapes can not be broadcasted.