iota-calc X 1.8.1

Major Features:

1. supports a rich expression format, which is in most cases identical to what you would type in your programming language.
2. Support for adding unlimited numbers of variables.
3. Built-in debugger that lets you see the expression simplified step by step.
4. Debugger Back-step lets you backup as many steps as you like so that you can replay critical operations.
5. C/C++ operator precedence
6. Mouse optional, all calculator commands and functions can be done using the keyboard alone.
7. Mini-Calc Mode lets your calculator take up very little screen real estate, and yet remain entirely usable.
8. Numerous built-in unit conversions (memory sizes, lengths, areas, volumes, temperatures etc.)
9. Built-in great circle route and straight line distance calculators.

Enhancements: Fixed Mini-Calc mode.