Some great sites for Tf2 trading:
http://backpack.tf/pricelist (Best price list and most accurate so far, used almost by all trading servers)
http://www.tf2outpost.com/ (Best site for trading items with other people, extremely popular, wouldn’t recommend it for beginners because its filled with scammers. You can also find if items are duplicated here.)
http://tf2spreadsheet.traderempire.com/ (Another decent price list, I like it because it has free trustable raffles)
http://tf2tp.com/ (Another decent trade website)
http://scrap.tf/ (Here, you can trade with bots, however, do note that the prices the bots buy at are not always the best)
http://stats.tf/ (Shows every single stat on tf2, meaning it shows how many of each item exists. You can also find if items are duplicated here)
http://wiki.teamfortress.com/wiki/Main_Page (The best page of Tf2 for knowing what an item does and its history)
*not done yet
Ok, so I just made this really simple quadratics program. At least you don’t need to type in all those numbers anymore. You can just use this.
:Prompt A,B,C :(-B+√(B^2-4AC))/(2A)→D :(-B-√(B^2-4AC))/(2A)→E :Disp D,E
Alright, so I’ll be posting some basic T-84 programs that you can use in your math class. It’ll be related to quadratics, unit circles, etc.
Be ready to see some “action”! (hopefully)