[lovintheberry]

i think blackberrys need a better calculator. they are very basic and need something a bit more advance like that of the iphone. nothing to complicated. pm me for more details or ideas. would anyone else want this? i would pay $5 for it. someone please take this on!

[FF22]

I believe there is (or was) one. It was free. I don't recall who produced it but possibly searching for "scientific" or calculator might turn up the thread - it has been a while since I last saw it mentioned. They also made some flashcard app, if I recall.

[soloracer24]

There's one here that supports graphing too:

Affordable mobile productivity and learning tools!

for the free version scroll to the verry bottom and follow the directions