-
Notifications
You must be signed in to change notification settings - Fork 99
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
What about gamma_inc_inv
's derivative ?
#452
Comments
There are analytical formulas for the derivatives. One of them is fine, but the other involves the Meijer G function, which we don't have (#265). We could add a chain rule for the derivative with respect to the second argument, but ForwardDiff doesn't support ChainRules (unless you also import https://github.com/ThummeTo/ForwardDiffChainRules.jl, which we don't currently do here). |
It looks like the derivatives you linked to on wikipedia are for the gamma incomplete function, and not its inverse, if I am not mistaking. |
I am hitting the following issue :
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 ?
The text was updated successfully, but these errors were encountered: