Everyone has the same calculator.
Just buy a new calculator. On every thread you make you seem really pissed at something so little.
Also half my friends don't even do school with their calculators. They Program Doom on them and play in class instead like the slackers they are.
http://edu.casio.com/products/ntd/fx115es/images/closeup_fx115es.jpgAnyways, what you have there is a Texan calculator.
Casio is a Japanese company and Texas Instruments is headquartered in Dallas. ;o
Honestly I prefer the TI-30XS for calculator usage. It has a really great user interface and was $10. The TI-83 and TI-84 lines are insanely expensive for the actual computing power you get out of them and they have a very old and clunky interface compared to newer models.
>Chick in your class broke your mini calculator>Hate school