https://github.com/robert-van-engelen/rpn

Powerful RPN calculators with complex arithmetic for SHARP pocket computers
https://github.com/robert-van-engelen/rpn

pocketcomputer rpn rpn-calculator rpn-complex

Last synced: 5 months ago
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Powerful RPN calculators with complex arithmetic for SHARP pocket computers

• Host: GitHub
• URL: https://github.com/robert-van-engelen/rpn
• Owner: Robert-van-Engelen
• License: bsd-3-clause
• Created: 2021-09-03T19:38:02.000Z (almost 5 years ago)
• Default Branch: main
• Last Pushed: 2022-05-20T18:48:08.000Z (about 4 years ago)
• Last Synced: 2025-05-22T11:36:06.305Z (about 1 year ago)
• Topics: pocketcomputer, rpn, rpn-calculator, rpn-complex
• Language: BASIC
• Homepage:
• Size: 508 KB
• Stars: 4
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE.txt

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README

          
# RPN

A collection of powerful RPN calculator programs for the SHARP PC-G850(V)(S)

and PC-1475.

![PC-G850](PC-G850.png)

The RPN programs are written in BASIC.  The programs can be easily extended to

add custom operations and user-defined functions.

Familiarity with RPN calculators, in particular the

[HP-15C](http://www.hp.com/ctg/Manual/c03030589.pdf), is recommended.

## Features

- complex arithmetic with separate stack registers for real and imaginary parts

- 10 memory registers R0 to R9

- one and two variable statistical functions

- regression

- hyperbolic and trigonometric functions for complex values

- coordinate conversions to polar and rectangular

- combinatorial functions nPr, nCr and !

- gamma function

- GCD and LCM

- rational approximation of a decimal

## How to use

- SHARP [PC-G850(V)(S)](PC-G850/readme.md)

- SHARP [PC-1475](PC-1475/readme.md)

## How to load

Use the excellent [PocketTools](https://www.peil-partner.de/ifhe.de/sharp/)

to convert BASIC source code to wav files:

    bas2img --pc=G850 --level=8 rpn.bas

    bin2wav --pc=G850 rpn.img

Then `BLOAD` or `CLOAD` on your pocket computer.

Author: Dr. Robert A. van Engelen