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Forward or Backward mode autodiff? #16

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stewartdent opened this issue Mar 8, 2018 · 1 comment
Open

Forward or Backward mode autodiff? #16

stewartdent opened this issue Mar 8, 2018 · 1 comment

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@stewartdent
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Is chumpy using Forward mode or Reverse mode automatic differentiation? A quick browse seems like forward mode...
@SelvamArul
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The function computing the automatic differentiation has implementation of both forward and backward mode here.

The documentation (sec 2.1) says "Chumpy is primarily a forward-mode, Jacobian producing autodifferentiation framework. Reverse-mode is partially supported, but much slower than it should be because some basic functions need implementation."

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@SelvamArul @stewartdent