PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations.PCalc is ideal for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode, a choice of button layouts, an extensive set of unit conversions, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations.
Updated all scientific constants to the latest CODATA 2018 values, and now include the full list.
Improved accuracy of stored numbers when PCalc isn't running, and for copying and pasting.
Improved the UI for using multiple memories in the widget.
No longer show the "M" indicator when other memories have contents, but "Use Multiple Memories" is off.
Added new line display types that show a running total for the current calculation, the "Last X" value, and all the memories.
Added an option for displaying all function variables in the registers section.
Fixed a problem with still being able to click buttons that weren't enabled.
Titlebar buttons now work with VoiceOver and AppleScript.
Ratings and Reviews
PCalc 4.5.3 on 10.8 bug
This is really a great app, but I'm using 10.8.5 Mountain Lion, yes I know it's an old os, and there's a bug I noticed.
About a third of the time opening the app, the number screen comes up blank. Not with a zero or anything else, just blank.
After a few more times of closing then opening, it works fine again, finally showing numbers. Is this just a Mountain Lion bug,
or is anyone else having this problem? Oh well, it actually works sometime, just wondered if anyone else has experienced this too.
I'm using version 4.5.3.
ALL TIME GREATEST CALCULATOR
If you’re an engineer, programmer, scientist, number lover, or calculator fanatic then welcome home. This app is for you. You will be giddy with happiness from the functionality and ui. You will experience joy you never thought a calculator could possibly bring you. It can even calculate the ultimate number.
-To the devs, thank you so much. I’m estatic that I found this app. It’s like my years of frustrated search has concluded. A search I didn’t realize existed until I found this. I never have to switch calculators or get frustrated from limits.
Outstanding features and customizations speed up everything
Polished by years of incremental improvement. The customization options are outstanding. I've converted a number of shift-key actions and mouse button push actions to single key action with keyboard shortcuts, e.g. "p" for "+"; "c" for "clear" ; "r" to switch and from to RPN; "t" to switch to and from tape The conversion capabilities are outstanding: start with the built-in shortcut "cmd-b", then simply start typing the name of the type of unit, e.g. "speed" or "area".
Challenge friends and check leaderboards and achievements.
With Family Sharing set up, up to six family members can use this app.