GeekCalc - a developer's calculator for Mac OS X
GeekCalc is designed for the software
developer. It includes the basic calculator functionality but also
supports signed and unsigned integer math for 64, 32, 16, and 8
bit integers. An ASCII mode and an ASCII character table are
included as well.
The calculator was developed as an exercise to
learn Objective-C and the OS X development environment. The
calculator seemed like a simple way to start and it also gave me a
calculator that has the features I haven't been able to find in
any other free calculators.