26 results for tags
calculator x
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HP Plus RPN Calculator Comparison Table
Found on the MoHP forumSat Apr 12 15:08:25 2025 - permalink -- https://sites.google.com/view/hp-plus-calculator-comparison/home
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Flashing HP15CE with linux
Max mentions the FOSS alternative https://ports.macports.org/port/bossa/ to SAM-BA in https://www.hpmuseum.org/forum/thread-22776-post-196270.html#pid196270Thu Nov 28 12:03:09 2024 - permalink -
Idarn commented https://www.hpmuseum.org/forum/thread-22776-post-196275.html#pid196275 that a patch is needed- https://www.hpmuseum.org/forum/thread-22776.html
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The Backbone – Creatures of Thought
Another interesting book, found via https://technicshistory.com/2024/11/03/a-craving-for-calculation/ which was mentioned on the MoHP forum https://www.hpmuseum.org/forum/thread-22717-post-195784.html#pid195784Wed Nov 20 14:22:28 2024 - permalink -- https://technicshistory.com/the-backbone/
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HP Calculator Literature
Large collection of manuals, handbooks etc. for Hewlett-Packard calculators. Found on a post on the MoHP forum https://www.hpmuseum.org/forum/thread-19886-post-176204.html#pid176204Tue Oct 8 15:21:25 2024 - permalink -- https://literature.hpcalc.org/
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GitHub - brouhaha/nonpareil: microcode-level simulation of HP calculators
In this release, the following calculators are simulated:Mon Feb 26 10:26:21 2024 - permalink -
Classic series: 35, 45, 55, 80
Woodstock series: 21, 22, 25, 27
Spice series: 31E, 33C, 34C, 37E, 38E, 38C
Nut series: 41CV, 41CX
Voyager series: 11C, 12C, 15C, 16C
Modified Voyager: 15X (more RAM)
See also Eric Smith's page https://nonpareil.brouhaha.com/- https://github.com/brouhaha/nonpareil
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Jovial RPN - Reverse Polish Notation Calculators
Simulators for the hp15c and hp16c calculators, can be used in the browser or as Android app(lication).Fri Mar 24 14:24:41 2023 - permalink -- https://jrpn.jovial.com/
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RTC Calibration program - SwissMicros Calculator Forum
Program to determine the calibration value needed to correct for the frequency error of dm42s' RTC.Mon Jun 13 15:58:37 2022 - permalink -- https://forum.swissmicros.com/viewtopic.php?f=19&t=2212
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free42 Random Math Stuff
Polynomial root finder for {dm,hp}42s using Laguerre's method. Found on https://forum.swissmicros.com/viewtopic.php?p=20091#p20091Mon Jun 13 15:52:20 2022 - permalink -
The Emacs tools for {dm,hp}42 code on https://richmit.github.io/hp42/hp42s-meta.html and the
Lisp library http://www.mitchr.me/SS/mjrcalc/ look interesting too.- https://richmit.github.io/hp42/math.html#org670c9bb
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txt2raw.pl: HP-42S program listing to "raw" conversion
Perl program to convert {dm,free,HP}-42 programs from textual representation to raw files which can be loaded into {dm,free}42.Fri Mar 5 14:47:58 2021 - permalink -- https://thomasokken.com/free42/download/unsupported/txt2raw/
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Free42 : An HP-42S Calculator Simulator
Free42 is a re-implementation of the HP-42S Scientific Programmable Calculator and HP-82240 Printer.Sun Jan 20 23:17:37 2019 - permalink -
It is a complete rewrite, not using any HP code. It does not require an HP-42S ROM image.
Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.- http://thomasokken.com/free42/
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start [HP Calculator Wiki]
This wiki was originally created to be a development home for repurposing the HP-20b calculator, but has since grown to support several repurposing projects. It is our hope that this grass-roots approach to calculator hacking will expand to include other many HP calculator models and open-source projects.Mon Nov 19 13:56:45 2018 - permalink -- http://www.wiki4hp.com/doku.php?id=start
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DM42
Example programs, (off) images and photos of the internals of the SwissMicros DM42 calculator.Mon Feb 12 17:17:28 2018 - permalink -- http://www.finetune.co.jp/~lyuka/interests/calc/dm42/
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cloudycat / hoppi — Bitbucket
Hoppi is an application for MacOSX to allow communication withSat Nov 30 17:15:41 2013 - permalink -
HP48/49/50 series calculators using the Kermit file transfer protocol.
It supports both USB and RS232 calculator ports.
Hoppi is implemented in Clozure Common Lisp.- https://bitbucket.org/cloudycat/hoppi
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RPN calculators
Interesting page about HP calculators, including tips to check the battery on the hp15c LE, example programs and more.Fri Nov 15 15:51:14 2013 - permalink -- http://tuxgraphics.org/~guido/hp_calc/
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Elliptic integrals of 1st and 2nd kind calculated by complex agm
An interesting algorithm for calculating complete elliptic integrals.Sat Jun 29 23:18:25 2013 - permalink -
Alas, the link no longer works on 2020-03-10.- http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/forum.cgi?read=245736#245736
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SwissMicros.com
The world's smallest programmable RPN calculators ever. The complete family DM-11, DM-12, DM-15 and DM-16.Wed Nov 28 09:54:36 2012 - permalink -- http://www.swissmicros.com/
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Virtual Pickett N600-ES Slide Rule
A slide rule which can be used in a web browser.Fri Oct 7 22:58:38 2011 - permalink -- http://www.antiquark.com/sliderule/sim/virtual-slide-rule.html
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Some badly conditioned matrices to test the accuracy of determinant calculations.
Fri Oct 7 12:42:32 2011 - permalink -- http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv015.cgi?read=72635
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HP-15C web-simulator
Web-based simulator of the hp15c calculator. Enhanced version with stack display. Note that contrary to emulators such as nonpareil, this simulator does not produce the same results as the real hp15c.Sun Sep 18 01:45:46 2011 - permalink -- http://hp15c.com/web/hp15c.html
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ND1
RPL-based calculator for iPhone, an Android version has been announced.Mon Jul 25 15:27:24 2011 - permalink -- http://naivedesign.com/ND1/ND1.html