TensorFlow 1 version View source on GitHub

Asserts that the given tensor is a scalar.

    tensor, message=None, name=None

This function raises ValueError unless it can be certain that the given tensor is a scalar. ValueError is also raised if the shape of tensor is unknown.

This is always checked statically, so this method returns nothing.


  • tensor: A Tensor.
  • message: A string to prefix to the default message.
  • name: A name for this operation. Defaults to "assert_scalar"


  • ValueError: If the tensor is not scalar (rank 0), or if its shape is unknown.