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JRPN is available now in two variants, 15C and 16C (simulating HP-15C and HP-16C accordingly), for Android, Linux, Mac OS, Windows and as a web application. [11] Also there is another RPN calculator of the same name, developed by William Giel as freeware proprietary software. It has been last released in 1999. [12]
The HP-42S RPN Scientific is a programmable RPN Scientific hand held calculator introduced by Hewlett-Packard in 1988. It is a popular calculator designed for science and engineering students. Overview
Financial calculator. HP-19C: 1977 Calculator with RPN and built-in thermal printer. Included a programming language with looping and branching. HP 20b: 2008 Financial calculator with RPN. HP-20S: 1988 A basic scientific calculator, using infix notation, barely programmable and with no graphing capabilities. HP-21: 1975 Scaled-down HP-25. HP ...
Atari Calculator (or Calculator) is a proprietary software program developed by Atari, Inc. for Atari 8-bit computers and published in 1979. It incorporates the functionality of a scientific calculator into a software calculator. It was written in assembly language by American programmer and game designer Carol Shaw.
Video: Keys pressed for calculating eight times six on a HP-32SII (employing RPN) from 1991. Reverse Polish notation (RPN), also known as reverse Łukasiewicz notation, Polish postfix notation or simply postfix notation, is a mathematical notation in which operators follow their operands, in contrast to prefix or Polish notation (PN), in which operators precede their operands.
The 35s supports both RPN and algebraic entry modes. Like most HP calculators, it defaults to RPN. The entry mode can be easily changed by the user. An annunciator on the display indicates the current entry mode. In RPN mode, it uses a four-level stack, as have all HP's non-graphing
The HP-32S (codenamed "Leonardo") was a programmable RPN scientific calculator introduced by Hewlett-Packard in 1988. [1] It was succeeded by the HP-32SII scientific calculator. [ 2 ]
A small sliding switch was used to change between "run" and "program" mode. The HP-25 used a 10-digit red LED display and was the first calculator to introduce the "engineering" display option, a denormalized mantissa/exponent format where the exponent is always a multiple of 3 to match the common SI prefixes, e.g. mega, kilo, milli, micro, nano.