tree 276701e5afb8045f73891fffce648a07f74ae452
parent c5db773bf1ba4d16c515f3443b133e1d276b9a90
author Sergiu Deitsch <sergiu.deitsch@gmail.com> 1748459661 +0200
committer Sergiu Deitsch <sergiu.deitsch@gmail.com> 1791479241 -0700

Add AccurateRNorm

Composing two-argument functions for variadic Jet inputs can produce
invalid derivatives because intermediate results do not preserve the
full derivative relationship. Introduce overflow and underflow safe
Euclidean reciprocal norm with variadic overloads. The Jet overloads
compute derivatives from all arguments using the complete chain rule.

Change-Id: Id47d4e7a56929548484175cf7a185b351771a67f