Optimize caching on trig functions

[Google Code Exporter]

Currently the trig functions store the keys/values separately (as pointed out 
by Tev). For cache optimization reasons it makes sense to store the key and 
values next to each other so that they can be fetched from the same cache line 
in a single operation.

Original issue reported on code.google.com by [e-mail] on 23 Jul 2012 at 9:51