sandialabs / pyttb / 5613777077

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Gcp fg sptensor (#204)

* GCP_FG_Setup: Add function/gradient handle implementations

* GCP_FG_Setup: Add setup API to match matlab

* GCP_FG: Completed with interface tests
* Stub for tensor.mttkrps, will be implemented/tested in next commit

* TENSOR: Add mttkrps
* To support gcp, fg

* TEST FIX:
* Resolve some precision variation across numpy versions
* Numpy testing methods check for shapes too

* Adds support for sptensors in fg computations. Fixes TypeErrors in fg handles. Adds tests on sptensors with data.

* Fix precisions.

* Fix missing negative

* fix gamma and gamma_grad. requires np.multiply(-1,data) due to TypeError: bad operand type for unary -: 'memoryview'

* formatting

* Use .full() instead of .data() to convert. Makes changes to function handles unnecessary.

* Fixes for merge request. Removes sptensor and ktensor data files; instead, generates them when the test is called. Fixes ordering of function arguments in fg.py.

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Co-authored-by: Nick Johnson <24689722+ntjohnson1@users.noreply.github.com>
Co-authored-by: Jeremy Myers <jermyer@sandia.gov>

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