The 6.0 version of MPCalcRB for Mac was available as a free download on our website. The software is categorized as Productivity Tools. The latest version of the application could have been downloaded forMac OS X 10.5.0 or later. This free software for Mac OS X was originally developed by Bob Delaney. The MPCalcRB installer is commonly called mpcalcrbmac.zip. The most popular version of the tool is 5.0.
From the developer:
MPCalcRB is a multi-precision RPN scientific calculator. It can handle numbers with up to 30,000 digits. The program can also handle numbers whose absolute values lie between about 10^-40000000 and 10^ 40000000. The popup menu selects from three keypads. There are keyboard equivalents for the functions.
You may want to check out more software for Mac, such as RubyCalc or RPN Calculator, which might be related to MPCalcRB.