Is there a good scientific calculator for pocket pc? It would be great not to have to take my calculator to math class. I would like it to be free. But still give me links to some that arent free.

Toshiba e335 --> Dell Axim X30 Mid --> Dell Axim X50v --> None for 6 months --> Dell Axim X51v --> --> Dell Axim X51v + T-Mobile SDA --> T-Mobile SDA --> Cingular 8125