Hypergeometric function

[msharp]

Need a robust implementation of the 2F1 hypergeometric function.

Currently, the t distribution CDF is calculated with a numerical approximation of the integral of the PDF. This is extremely slow, in particular when calculating the PPF, which executes CDF many times.

[Primebrook]

Guessing there's no plans to add this?

[msharp]

Guessing there's no plans to add this?

Not really.

[Primebrook]

There is https://github.com/Intellection/exstatic which gives us the CDF/PDF of the standard t distribution.