tree e5634ed0272b3b5820f69377dc2febb11a2a01a7
parent f7d17689a5e4609418c55ec47d7e5924e2785460
author Rasmus Munk Larsen <rmlarsen@google.com> 1521475494 -0700
committer Rasmus Munk Larsen <rmlarsen@google.com> 1521475494 -0700

Improve robustness of igamma and igammac to bad inputs.

Check for nan inputs and propagate them immediately. Limit the number of internal iterations to 2000 (same number as used by scipy.special.gammainc). This prevents an infinite loop when the function is called with nan or very large arguments.

Original change by mfirgunov@google.com