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oseledets / TT-Toolbox

The git repository for the TT-Toolbox
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Add tt_broadcast(A, n_extra). Simillar to Numpy function 'numpy.broad… #53

Closed distone closed 4 years ago

distone commented 4 years ago

Add tt_broadcast(A, n_extra). Simillar to Numpy function 'numpy.broadcast_to', this function broadcast TT tensor A at extra dimensions with specified mode sizes. The function is useful at binary operations of two TT with different shapes. For example A.B with A shape (2,3) and B shape (2,3,4,5), we could firstly do A=tt_broadcast(A, [4,5]) to broadcast A to the same shape of B and do A.B.

dolgov commented 4 years ago

Is https://github.com/oseledets/TT-Toolbox/blob/master/%40tt_tensor/add_non_essential_dims.m doing the same? (A more general insertion broadcast in fact)

distone commented 4 years ago

oh, ok you are right. It is already there, and more general. thanks!

On Mon, 27 Jul 2020 at 16:37, dolgov notifications@github.com wrote:

Is https://github.com/oseledets/TT-Toolbox/blob/master/%40tt_tensor/add_non_essential_dims.m doing the same? (A more general insertion broadcast in fact)

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