How do I type math?

Main Question or Discussion Point

I'm new to physicsforums, so my math typing is limited to the standard keystrokes. 1/x!, 2x^2. d/dx ln(3^(x+7)), for example. SO how do I do the nice summation symbols, imaginary number i, derivative operator, etc.?

Thanks!

PS to admins: Sorry if this is in the wrong place, I wasn't sure where I should put it.

HallsofIvy
Homework Helper
Use "LaTex" which is really a typesetting program that converts "text" into math symbols. On this particular board, you start with [ tex ] and end with [ \tex ] (without the space which I had to put in so they would show.
[ tex ]\frac{d e^{3x}}{dx}= 3e^{3x}[ /tex ]
without the spaces gives
$$\frac{d e^{3x}}{dx}= 3e^{3x}$$

There is a tutorial on LaTex at the top of the thread list at
https://www.physicsforums.com/forumdisplay.php?f=151

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arildno