Add some operations (#1816)

* add some ops

* add SquareDifference

* squaredifference

* add SquaredDifference test

* add tests

* add abs

* fix style

* fix style

* fix style

* fix tests

* fix style

* add div

* meet code review

* meet code review

* meet code review
This commit is contained in:
Yang Wang 2017-11-03 09:55:51 +08:00 committed by GitHub
parent 7fb2dadba7
commit 9b24d126c3

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