That was the closest character I could find. How is (-) spelled? I asked my math teacher and she didn't know. I was assuming 'Thata' but wasn't sure. :)

Theta perhaps? Not sure which character you're after...

http://www.mathacademy.com/pr/prime/articles/greek/index.asp

[quote author=hismajesty[yL] link=board=36;threadid=7175;start=0#msg64392 date=1086820978]
That was the closest character I could find. How is (-) spelled? I asked my math teacher and she didn't know. I was assuming 'Thata' but wasn't sure. :)
[/quote]
It's Theta, eight letter of the greek alphabet, used to represent unknown angles.

You should have looked at the "Useful Links" thread (sticky thread on the top of this forum).

[quote author=Yoni link=board=36;threadid=3816;start=0#msg31146 date=1069705731]
http://www.wesleyan.edu/classics/grk101/writing_guide/writing_guide.html
Found this in my Favorites - a guide for writing Greek letters.
Greek letters are very often used in mathematics, which makes this a useful link here.
Pretty neat, I guess.
[/quote]

Edit: Ack! The link is now broken.
A Google search reveals a working URL.

http://mkatz.web.wesleyan.edu/wescourses/2000f/grk101/01/draft/writing_guide/writing_guide.html

Thanks. :)