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The first size listed is the downloaded file size and the second size listed is the size on the calculator. HP 48 Documentation Files The first size listed is the downloaded file size and the second size listed is the size on the calculator. Explains a bit about the operation of the hidden directory, and shows a roundabout way to get to it on an SX. Contains 10 interviews from the French website www.

You can find new interviews on www. Only the interview of Eric Rechlin is in English. By Jeremy Smith and Warren Furlow. Handy two-page tables listing the functions of all the keys on both the S series and G series. In Microsoft Word format. Tells about what led up to the HP 49G, giving a brief history of HP calculators in and the switch from Corvallis to Singapore to Australia for development. It covers topics such as networking, memory upgrades, RAM cards, connection cables, and opening the case using two different methods.

This guide is for people already familiar with User RPL to the extent of the manuals. Knowledge of programming and program syntax is assumed. This is just a listing of all commands and their usage. Question written by a [stupid] new user of the HP 48, and a humorous reply rewriting the question in an airplane context by Joe Horn.

Data sheets for the parts used are also included. The Bill of Material calls out specific vendor and vendor part numbers for the passive components used, but any equivalent part in the SMD package can be substituted. Battery backup is by use of a 12 mm lithium coin cell, either the CR or the CR The CR has the higher capacity rating of the two at 48 mAh.

Explains the outcome of some investigations into various array data types in the 48SX. Talks about how some assembly instructions take a different amount of time to run depending on memory address.

If you are having trouble with the screen in your HP 48, you may be eligible for a free replacement. Lists some things that use up more battery power. This information is provided to help you conserve battery life. Description and photos of how one person repaired a keyboard failure in a 48GX due to the batteries leaking. An analysis of the way the 48SX produces beeps, and side effects that can be noticed due to the implementation. CalcCompare 1. Calculator Command Comparison Sheet 2.

A command comparison sheet of HP symbolic RPN calculators, containing a description of every command. The sheet is color coded based on the model for easy reading. Humorously explains that the HP Equation Library card is not fully using the card's capacity because it was write-protected.

Common questions and answers about Voyager, an old tool for DOS for disassembling 48 software. Como fazer o cabo 1. With this document you will build and improve your HP PC cable. A little out of date now and only here for historical reasons, but it contains posting information for comp. Explains several methods of compiling a string into an object, and lists advantages and disadvantages of each. Complex Numbers Marathon 1. Detailed documentation of the algebraic and graphics capabilities of the HP 49G working with complex quantities.

New orthographically corrected version. The ZIP archive includes all programs of the marathon. This document explains how to connect your HP 48 series to your computer through an IR device originally written for an HP notebook. Corso 1. Explains how to make and use a table of characters in assembly language. Includes a sample program. Contains information about how the checksums for objects are determined and gives two C routines to calculate them.

By Alonzo Gariepy and Dave Kaffine. Given x and F on the stack, where x is any argument, and F is a function of one argument user-defined or built-in , this shows how to get 'F x '. Creating Your Own HP Curso de programacion en User RPL 1. Guide for programming in User RPL on both the 48 and Written in Spanish and in PDF format. Includes examples related to civil engineering. Comments about a bug in the 48 that lets you enter system binaries from the command line.

Cycles du Saturn 2. Also includes photos and a screenshot of one possible PCB layout. Editor Plus Notes 2. External Keyboard 1. Shows how to put an external power jack into the HP 48 for plugging in an AC adapter or any other external power supply. Great feature to add if you're upgrading the memory of your S or G! This file is more comprehensive than the above file, and is in HTML format. Explains a bug related to grobs, that can cause a Memory Clear when attempting to create a grob with one dimension over about a million pixels.

Grob Encoding Information 1. Article explaining why Handi-Calc went out of business and HP's poor business practices. In Adobe PDF format. By Richard Nelson and Jim Lawson and others. An alternate explanation for the "hiss" that comes out of the HP 48 keyboard.

This is a tar'ed, gzip'ed file of the HTML document how2open. A summary of functional differences of 28S operations as implemented on the 48SX. It is not intended to present all of the many improvements and new commands in the 48, but is primarily an aid for 28 users who wish to use their previously-developed programs on the The comments on any given topic are not exhaustive, but are quick summaries of operational differences.

HP 48 Cartridge 2. A small example of how the standard catalog configuration can be used to view a catalog of random strings. HP 48 FAQ 4. It is the number two source of information about the HP 48 after the user's manual, of course , and everyone should get a copy of this Frequently Asked Questions list. Text version. HTML version. Before asking a question about the HP 48, read this first.

If you'd prefer to read the FAQ online, click here. Adobe PDF version. PostScript version. SGML source, for easy conversion into many different formats. ASCII text version. Review on R. Ray Depew's "HP 48 Graphics. In PDF format. I2C interface demonstrated at the London HP conference. Contains documentation and 45 photographs explaining how to open the HP 48 series for repair, including tips on repairing screen and keyboard problems.

HP 48 Schematics 1. In MS Word format. Lists the commands contained in the Advanced User's Reference and shows their stack syntax. This PDF document has pages and was scanned at dpi color by an unknown individual. I cleaned up the several hundred megabytes of scanned images and converted them into into a relatively compact black and white PDF file. This PDF document has pages and was scanned from the original book. Complete copy of the eighth edition of the 48G series instruction manual.

This PDF document has pages and was scanned by me at dpi monochrome. Fully bookmarked in order to easily jump between sections. Included on this site with the permission of HP tech support. By Hewlett-Packard and Eric Rechlin. Goes into depth about object types and important memory addresses.


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