When I received an HP-11C for my birthday many, many years ago, I said, "This is all the computer I will ever need." I was very wrong, of course, but that calculator was my absolute favorite for years. This is a beautiful recreation of the original 11C. Part of what makes it work so well is that it is visually identical as well as functionally. My eyes and "fingers" are fully trained at using the device. (LXVII, an HP 67 emulator where the visual layout is only roughly approximated, is much harder to use.) I have not tested every function, but the ones I have tested, including rudimentary programming, all work perfectly. NOTE: When first launched, YOU DO HAVE TO TURN IT ON. The very first time, you may get an error message in the display. Just hit the ON button 1 or 2 more times, and you're good to go. If you leave it on, it will be on when relaunched. Used on Early 2011 MacBook Pro, OS X 10.10.2; Late 2012 27 Inch iMac, OS X 10.8.5.
IT DOES NOT WORK
AFTER THE INSTALLATION THE DISPLAY DOES NOT SHOW ANYTHING, DO NOT BUY THIS APPLICATION.
Does not work
Numbers do not show in calculator display. I want my $ back...
Very Good Rendition of an 11C
This app works well and functionality is just what the old 11c delivered. It would be great if the copy and paste functions (menus and keyboard shortcuts) worked to copy/paste numbers from/to the X register. That way numbers could be easily brought in from another application and the result of a calculation could be copied and pasted into yet another application. As it stands, it is a pretty good app; this addition would make it great.
Hyp Trig Functions
The Hyperbolic Trig functions on RPNcalc11c (exactly like those on a "real" HP11C), ALWAYS treat the angle in radians REGARDLESS of the selected Trig Mode. This inconsistency can easily be accounted for while doing calculations but yields wildly erroneous results if one fails to do so. The normal Trig Functions work properly in the selected Trig Mode as should be. bitPunch is to be commended for making this series of wonderful calculator apps available for those who don't have mobile devices.