Also, previous services that I have used similar to this have been pulled or put behind a paywall, so I'm reluctant to use a web service like this.
As for it being pulled. Not anytime soon. It will always be a free survice, so long as its in use. Made increasingly likely now two large companies are considering handing over control of their servers for us to support directly in exchange for public access. First steps to a truely worldwise distributed equation rendering network.
which provides a tinyurl-style link to the formula, and a png which can be saved or referenced using the same reference.
On that note, does anyone know how to get Wikipedia's MathML display mode to work correctly? I have it set in my profile but it doesn't do anything.
1. MathML is a W3C standard.
2. Preventing page breakage due to NoScript.
p.s: I haven't used either - the few (very rare) occasion I have required to display an equation/complex expression, I construct it externally (MS Office mostly) and paste a screenshot of it :)
I tried to leave this comment on the jsMath site, but the form wouldn't let me include a link to detexify.
On the other hand, jsmath uses a non-unicode encoding of the math symbols which means you have to download their fonts that use the 8bit TeX encoding. I hope they switch to the STIX font.
high-quality images produced by LaTeX typesetting system.