Valentín's HP-41 Programs ROM

[Ángel Martin]

Greetings,

I'm sure you'll agree with me that Valentin's contributions to our community deserve all the credit and recognition possible, and even some more after that. His last SRC#11, to mention just the most recent one, is a superb tour-de-force with great reach and rich development, nothing short of a remarkable feat where he’s outdone himself again.

The two ROM images attached are but a (long overdue) small homage to his work, intended to facilitate the access to the subjects for all interested but somehow not daring to type the programs on your own (and some are long, specially in the Board Games department).

And what about manuals, do I hear you asking?
Glad you asked, as this gives me the opportunity to reference valentin's articles available at the treasure trove of web site:

VA-MATH ROM

HP Program VA342 - HP-34C Summation of Alternating Series.pdf
HP Program VA343 - HP-34C Double Integrals.pd
HP Program VA411 - HP-41C Finding Roots of Equations.pdf
HP Program VA412 - HP-41C Finding Extrema of Functions.pdf
HP Program VA413 - HP-41C 3-point Gaussian Integration.pdf
HP Program VA415 - HP-41C Systems of 1st-order Differential Equations.pdf
HP Program VA417 - HP-41C Systems of Linear Equations - Gauss-Seidel.pdf
HP Program VA420 - HP-41C Eigenvalues of Symmetric Matrices - Jacobi.pdf
HP Program VA421 - HP-41C NxN Matrix Inversion.pdf
HP Program VA425 - UPLE Program Submittal - HP-41C Sistemas de Ecuaciones Diferenciales.pdf

HP-41C Long Live the Advantage ROM !
HP Letter 1980-09-27 - Letter from Valentin Albillo to John McGechie - 070588-90.pdf
HP Letter 1980-09-27 - Letter from Valentin Albillo to John McGechie - 070588-90.pdf


VA-GAMES ROM

HP Program VA419 - HP-41C ESP Tester.pdf
HP Program VA418 - HP-41C Memory Game and Trainer.pdf
HP Program VA416 - HP-41C Mate w King Bishop Knight Practice.pdf
HP Program VA414 - HP-41C Dice Rolling with Graphics.pdf
HP Program VA426 - UPL Program Submittal - HP-41C Reversi (11019).pdf
HP Program VA427 - UPL PS - HP-41C Chess 5x5 (inc barcode).pdf
HP Program VA428 - UPL PS - HP-41C Othello (00903C).pdf



Enjoy,
ÁM

[Gene]

The PDFs do not load or show when clicked.

The ROM image downloads ok.

[Jlouis]

(04-21-2022 10:48 PM)Gene Wrote:  The PDFs do not load or show when clicked.

Same here

[Ángel Martin]

(04-21-2022 10:48 PM)Gene Wrote:  The PDFs do not load or show when clicked.

The ROM image downloads ok.

Vagaries of the e-goblins, sorry about that. Obviously mastering URL's is not my forte...
I *think* they should work now, this was more difficult than preparing the ROMs ;-)

You can find them all here: https://albillo.hpcalc.org/

[BillBee]

The links now work nicely.

Love the material.

-Bill

[jonmoore]

Great idea to compile these classic programs onto a single module Ángel.

However, I've found that MM - Finding Extrema of Functions, doesn't resolve to proper values. In fact, if you attempt the first two examples in the PDF, Flag 0 gets set, which means that the program has reached maximum iterations without finding correct answers.

Thankfully I tested MM whilst my DM41x was being powered by USB, so the wait for the time-out wasn't too long.

I'm going through the programs in the order you published the PDF's in the first post, so I'll report any other errant behaviour I find. But I'll repeat myself; it's really cool to have the crown jewels of Valentín's programs in one module.