How do you write the not equal sign?
In programming it is often != and I use that. I just saw /= as well today.
What do you use (other than )?
I use ~=, which is from Matlab/Octave, but != is inter-changeable in Matlab, I think.
EDIT: I suppose if you use '~' for 'not', you could also use , er, nevermind, I can't seem to place the symbol here, but it looks like a L rotated 90 degrees forward and then flipped over.
I noticed here that typing in ": ! = :" gives the symbol on this board, but not elsewhere.
Is there any way to make this work elsewhere, like on another forum?