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Problem with function returned by forward #39

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vargonis opened this issue Jul 19, 2019 · 0 comments

vargonis commented Jul 19, 2019

The following code, which works well with Zygote, produces the detailed unexpected behavior:

using Flux.Tracker
f(x) = [x^2+1, -x^3]
y, back = Tracker.forward(f, 1)
back([0,1]) # (-3.0 (tracked),)
back(1) # should fail, but gives (2.0 (tracked),)
back([0,1]) # (0.0 (tracked),) (!?)

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