How do i use mathmatical symbols

[professor]

not necessarily homework...but i don't know where to put it... how do i use greek letters/square roots...etc in the forums

 

[TD]

This should help

 

[Hurkyl]

You can learn how to make the LaTeX symbols (clicking on an image will show you the text you need to use)


Also, many text symbols can be made:

& radic ; = √
& rarr ; = →
& alpha ; = α
& Psi ; = Ψ
& infin ; = ∞


Not to mention anything you can look up in the Character Map in windows (provided you're looking at the right font)

For example, a degree symbol (°) can be made by typing ALT-0176. (You must use the numeric pad, and hold alt throughout the entire sequence)

 

[robousy]

S = \sum_{n=0}^\infty \frac{i^n}{n!} \idotsint \ {d^4x_1}\ {d^4x_2}<br /> \dots \ d^4x_n \ T (H_I(x_1) \ H_I(x_2) \dots \ H_I(x_n) )<br />

 

[Fermat]

You can copy and paste from here.