Calc

* Scientific * Statistical * Financial * Programmable * Graphing * Complex arithmetic * Matrix/vector arithmetic * RPN Calc is a programmable scientific and financial calculator for mobile devices Calc works much like a good old HP calculator with RPN logic, but the stack has 16 elements and you can see many of the elements on the stack simultaneously. I have chosen to use RPN logic (Reverse Polish Notation), because operating it requires less keys, you need only ENTER instead of "(", ")" and "=". Additionally, being able to store and see intermediate results on the stack is very advantageous. Using the Real Java floating point library, Calc has 63 bits internal precision, which amounts to approximately 19 decimal digits accuracy, considerably more than normal calculators and computers. The exponent is 31 bits, which allows for numbers up to 4.197·10323228496. Handy when you want to calculate the factorial of 40000000. Full documentation is here. Read this at least.

User Reviews of Calc

6.4 - February 25, 2009 - Jagmeet from India using Nokia 6030
This the best free calculator that i have seen till now