s u r f - s i t e . c o m Web Surfing Directory     Top: Computers: Hardware: Calculators: RPN HP48@  (4) Eric Smith's HP Calculator Info - Technically page about older HP calculators with simulators for HP-41 and 45 calculators. With links to other calculator-related pages, journal articles, and US patents. User Friendly the Comic Strip - about RPN. A good way of explaining RPN with three picture frames. (Note: Erwin is an AI entity that frequently has been moved to different computers and his previous home was a Sun Workstation.) Help build the largest human-edited directory on the web. Submit a Site - Open Directory Project - Become an Editor surf-site.com - Web Surfing Directory is a free service of Bush Enterprises. Copyright ©2000, by James E. Bush.