slcalc app for iPhone and iPad

slcalc is a programmable calculator for engineers, scientists, and students in Science and Technology.

1. easily define and use your own constants, variables, and functions
2. programmable using "if-then-else" and "while" statements
3. arbitrary precision up to 256 significant digits
4. large number up to 1e646456993
5. any base from 2 (binary) to 36
6. calculation history can be recalled, edited, recalculated, and sent by email
7. input and key assignment can be loaded through Internet
8. a variety of formats, including n-base, thousands comma separator, scientific, and engineering notations
9. key layout, design, and color can be rearranged
10. optimized to both iPhone/iPod touch and iPad (Universal Application)