Wolfram Alpha Widgets Wiki Page

I started making this wiki page:

http://xenharmonic.wikispaces.com/Wolfram+Alpha+Regular+Temperament+Widgets

So far the only widget it has is something that puts matrices in
Hermite normal form, which is itself pretty useful.

I was trying to get it to do TOP and TE as well, but apparently
Wolfram Alpha sucks, because it can't handle any variation of the
following Mathematica expression:

Minimize[RootMeanSquare[{x, 2, 3}], x]

The {x, 2, 3} is just a dummy list for it to try and minimize the RMS
of, but it keeps crapping out. I've tried tons of variations of this
and I can't get it to work. If anyone can figure it out, please let me
know what expression you used to get it to work.

-Mike