rcal is an interactive calculator for DOS, that loosely mimics the behavior of "roller printing" calculators. It supports huge numbers, floating point and has extremely low hardware requirements. Read more: rcal.txt
rcal is published under the terms of the MIT license, and relies on the excellent APM math library (1988) by Lloyd Zusman.
Download:
• rcal101.zip (if in doubt, take this one)
• rcal101s.zip (sources)
• rcal.svp (SvarDOS package)
Older versions can be found on sourceforge (archival purposes only).
Wanna report a bug, or get in touch for any other reason? You will find pointers to do so on my website.