User Portlet User Portlet

Discussions
I've ended up doing quite a bit of image processing in Mathematica for which one of my first steps is often applying the BilateralFilter function to de-noise the images while preserving edge detail. Unfortunately, this rapidly gets very slow with...
I'm trying to translate some gnarly physics equations over to Mathematica for easier exploration / manipulation / etc, and I'm running into a problem when it comes to variable names like ![enter image description here][1] . In particular, these...