What about `gamma_inc_inv`'s derivative ?

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#452 2 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
julia
Domain
backend

Research direction

Start by locating the gamma_inc_inv and __gamma_inc_inv entry points and inspect how they handle ForwardDiff.Dual arguments. Determine whether derivative support is feasible for the inverse incomplete gamma routines; done means the reported MethodError is addressed with appropriate coverage.

Written by the indexing model from the issue text.

Description

enhancement

I am hitting the following issue :

ERROR: MethodError: no method matching __gamma_inc_inv(::ForwardDiff.Dual{...}, ::ForwardDiff.Dual{...}, ::Bool)

Is there somewhere an implementation for such a derivative ? I guess the routines for the inverse of the gamma incomplete function are based on numerical root finding, so it that even possible ?

Dominant language
Julia
Stars
384
Forks
115
Avg merge
2d 9h
Merged PRs (30d)
2

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