HP-41CV (Silverbird)

Scientific Calculator (1980 - 1985)

iPhone App

Apple Appstore i41CX or
Apple Appstore i41CX+

References Developer Website / Release Notes

Hardware and OS Integration Module
i41CX+ includes a built-in custom module (I41CX) with 59 functions to

1. take advantage of available hardware and OS features such as the accelerometer, GPS, copy and paste, email,etc.
2. provide programmatic access to i41CX+ GUI functionality such as showing the printer view, setting the calculator speed, etc.
3. control graphics mode which provides full control over the calculator displays.

HP-41C/CV/CX Programming

The Museum of HP Calculators (MoHPC)

Synthetic programming (MoHPC)

Manuals

HP-41C Online Manual
HP-41C Printer Online Manual
HP-41C Quick Reference Guides for Extension Modules

References

https://www.keesvandersanden.nl/calculators/coconut.php
List of links related to HP Calculators

http://www.epocalc.net/pages/mes_calcs_02.htm
https://www.youtube.com/watch?v=Xsohclu9cXI
https://calc.fjk.ch/links/
https://calc.fjk.ch/db/hp41mod.php
http://rwiker.github.io/hp41barcode/
http://www.hpcc.org/calculators/hp41.html

Projects

Private projects