PCalc

Version: 3.2 || Release Date: 2006-09-22 || License: Shareware ($us 19.) App Owner: baldi

PCalc 3 is a fully featured scientific calculator for Mac OS X with support for hexadecimal, octal and binary calculations, as well as an RPN mode, parentheses, programmable functions, and an extensive set of unit conversions. A Dashboard Widget is also included with the main application.

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2 Opinions

Way better than the integrated calc, this is the way to go.

Best of the RPN calculators (and, since RPN has been hardwired into my brain for thirty years, I've tried all the RPN calculators for the Mac).