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A comment on First-Class Automatic Differentiation in Swift. Parent comment

Re:First-Class Automatic Differentiation in Swift by eigenspace on Monday October 22, 2018 @10:01AM (#18274689)
That’s not normally necessary. One can often just use tagged dual numbers.

I guess one might consider tagged duals hyperduals.

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Re:First-Class Automatic Differentiation in Swift by adamnemecek on Monday October 22, 2018 @10:06AM (#18274730)
What’s a tagged number? Google isn’t helpful.
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