MPCalc Plugin provides the functionality of my multi-precision RPN calculator to a REALbasic program. It can handle numbers with up to 30,000 decimal digits.

It can also handle numbers whose absolute values lie between about 1e-40000000 and 1e+40000000.

As a Universal, Linux, and x86 plugin it can be used to create REALbasic applications which run under Mac OS X, Linux, and Windows.

Over forty scientific functions are now available.