add some notes about all the different zeros #162
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willtebbutt
requested changes
May 8, 2020
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I definitely think that we should have something like this in the docs, but possibly it should be given more of an intro explaining that it's not clear cut what the correct thing to do is in all of the cases.
Definitely helpful to have this write up floating around though.
| @@ -0,0 +1,75 @@ | |||
| # Design Notes: The many kinds of Zeros and NotDefined's | |||
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| There are many zero and not defined line situtions one might want to talk about in the context of differentation. | |||
| It is the only the only element of its type. | ||
| A very common case of this is functions. | ||
| Every function in julia is a singlton struct, with call overloading. | ||
| This is ChainRules's `Δself` that shows up in pullbacks and pushforward -- it is this kind of zero whenver |
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I think you stopped writing here.
Co-authored-by: willtebbutt <[email protected]>
Co-authored-by: willtebbutt <[email protected]>
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This is a great thing to have written down in the docs. I think we basically need to re-write this to make it more structured and accessible (it's a bit more stream-of-consciousness right now) |
nickrobinson251
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Not sure if should merge, doesn't reference what the outcome of this is, just this is the question space