Perform basic and advanced calculation in the RPN-based calculation program. Execute multiple active calculators, each with separate programs and data contents for multi-process data management. Inspect all components of an equation and check for errors.
LXVII (pronounced "67") is a faithful simulation of the Hewlett-Packard HP-67 calculator for Mac 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
v1.5 [Jun 29, 2011]
- Delete when inputting a number now deletes the digits that have been entered.
- Copy/Paste now works for the number in the display. Please note that it will convert the number from the proper floating point format to the display format as appropriate.What that means is that if you copy a number that is showing the exponent (for example "1.23-025") what you will paste is 1.23E-25. In the same way, pasting the number "12.33E13" into LXVII will display "1.233014"Trying to paste "1.233014" into LXVII will result in a beep, and no change to the stack. The pasted number will always push the stack up. Copy/Paste to and from the stack and memory register display still works as usual.
- The paper tape panel has been greatly enhanced. It now has an automated mode which prints the display and operation that was executed and a trace mode that will print each step in a program as it is executed. There is a preference pane to control how it works, and a help page dedicated to explaining it.Bugs Fixed:
- The display routines have been generally cleaned up to do a better job with rounding numbers and handling overflow/underflow situations.
- General bug fixes in program execution and some of the calculations in the less common functions, including hour, minute second to decimal hour conversion.
Math Drills
