LXVII (pronounced "67") is a faithful simulation of the Hewlett-Packard HP-67 calculator for OS X. Among its many features are:
- The ability to have multiple calculators and programs running at once.
- A live display of all stack, memory and program registers.
- A separate paper tape window
- Customizable display colors
- and many more
- Fix the INT function so it correctly gets the integer value for negative numbers.
- Fix the ISZ/DSZ functions so they only use the integer part of the number for the test.
- OS X 10.6.6 or later