∫x^{2}dx = ∫_{0}^{x}t^{2}dt + C

= C + lim_{n->∞}Σ_{i=1}^{n}(ix/n)^{2}(x/n)

as opposed to using TeX math (e.g. this)

[math]\int x^2 \, dx = \int_0^x t^2 \, dt + C

= C + \lim_{n \to \infty} \sum_{i=1}^n \left ( \frac{ix}{n} \right )^2\frac{x}{n}[/math]

The first is a lot more work to put together and doesn't look as nice, but displays correctly for all users. The second is a lot easier, for me at least, and looks much nicer, but won't show up properly if you're using subsilver.

P.S. to mods: there's a reason I put the poll in the math forum as opposed to in general or somewhere else, which is that I'm specifically wondering about users of the math forum for TeX-math reasons.

P.P.S. to users: This is a fine forum to put the poll in, because math markup is going to be way more common in here than anywhere else. For the record, users should feel free to use the math and imath tags whenever they want to show something that doesn't show up easily in regular characters. Anyone unwilling to change skins will thus have to deal with reading TeX code raw. At some point I'll make a sticky about this, to replace the old sup/sub announcement. - gmalivuk