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JuliaDiff / ChainRulesCore.jl

AD-backend agnostic system defining custom forward and reverse mode rules. This is the light weight core to allow you to define rules for your functions in your packages, without depending on any particular AD system.
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Approximate Equality of Differentials #184

Open willtebbutt opened 4 years ago

willtebbutt commented 4 years ago

It's not currently possible to compute

d1 ≈ d2

for all differentials d1 and d2. Probably we want to be able to do this, and it shouldn't be too hard.

oxinabox commented 4 years ago

A lot of this is defined in ChainRulesTestUtils.

Could potentially move it here.