John H Meyers

ID:60
First Name:John H
Last Name:Meyers
Last Change:2008-08-17
Number of Files:77 (9th most prolific)
Number of Downloads:469,543 (7th most downloaded)
Biography:John was an extremely prolific contributor to the comp.sys.hp48 newsgroup, helping fellow calculator users for decades with in-depth, useful posts. Was a resident of Fairfield, IA. December 28, 1942 - January 30, 2014

%TILE Replacement   (details) 48 ENG   2 KB / 1 KB
Replacement for the buggy %TILE command in the EXAMPLES directory.
By John H Meyers. 1998-07-22

Algebraic Calculator 1.5   (details) 48 ENG   6 KB / 1 KB
ScreenshotThe best algebraic calculator simulator I have seen. It supports constant calculations, taking numbers from the stack, placing numbers back on the stack, a memory function, and more.
By John H Meyers. 1998-09-20

All Roots   (details) 48 ENG   4 KB / 1 KB
Supply the start and end points of an interval, and an increment for evaluating the function at equally spaced points within the interval; then the program searches the whole interval, looking for roots (as indicated by sign changes or exact solutions at consecutive incremental points along the interval).
By John H Meyers. 1998-06-25

APLY Replacement   (details) 48 ENG   3 KB / 1 KB
Replacement for the buggy built-in (after running TEACH) APLY program.
By John H Meyers. 1998-07-19

ASCII to Binary Converter 2.0   (details) 49/50 48 ENG   11 KB / 1 KB
System RPL program to translate ASCII files into binary files so they can be used in Emu48 or a 49G+ using only an SD card, and vice versa.
By Eric Rechlin, John H Meyers, and Christoph Gießelink. 2005-05-30

Battery Drain Information   (details) 48 ENG   4 KB
Lists some things that use up more battery power. This information is provided to help you conserve battery life.
By John H Meyers. 1998-01-10

Buzz   (details) 48 ENG   5 KB
The real reason why the HP 48's keyboard buzzes.
By John H Meyers. 1998-06-12

BZDIR 3.2Get It   (details) 48 ENG   7 KB / 1 KB
Compresses entire directories with BZ.
By John H Meyers. 1998-06-25

BZM in User RPL   (details) 48 ENG   4 KB / 1 KB
Program similar to BZM but written in User RPL.
By John H Meyers. 1998-07-19

Caller ID   (details) 48 ENG   3 KB / 1 KB
Routine to find a variable's name from within the program.
By John H Meyers. 1998-11-13

Casio-like Fraction Calculator   (details) 48 ENG   3 KB / 1 KB
Fraction calculator that acts like the Casio fraction calculating abilities.
By John H Meyers. 1998-07-21

Change Object Type   (details) 48 ENG   3 KB / 1 KB
Converts between common object types, such as string to name, bint to real, binary to bint, and more.
By John H Meyers. 1998-07-24

Checksum Collision   (details) 48 ENG   3 KB / 1 KB
Calculates strings that have the same checksum.
By John H Meyers. 1998-07-21

Compile Batch File   (details) 48 ENG   3 KB
DOS batch file which makes it easy to compile and assemble programs with RPLCOMP, SASM, and SLOAD.
By John H Meyers. 1998-07-23

Compiling a String   (details) 48 ENG   3 KB
Explains several methods of compiling a string into an object, and lists advantages and disadvantages of each.
By John H Meyers. 1998-08-29

Constant Factor   (details) 48 ENG   5 KB / 1 KB
Allows the user to set up a factor (or dividend, summand, or minuend) to apply repeatedly, like most algebraic calculators. Uses vectored ENTER. Two versions.
By Len Fellman and John H Meyers. 1998-08-17

Conversion Toolbox   (details) 48 ENG   2 KB / 1 KB
Converts lists to matrices and vice versa and more.
By John H Meyers. 1998-07-22

Custom Unit Conversion Menu   (details) 48 ENG   4 KB / 1 KB
Replacement for the entire units menu system, with menus you choose yourself. You get a main units menu, with as many sub-menus as you wish, plus an additional program which goes immediately to a menu of units you can convert to, given any existing unit object.
By John H Meyers. 1998-10-17

Day of Week   (details) 48 ENG   1 KB / 1 KB
Tiny program which prints the date tagged with the day of the week, or gives a number representing the day of the week.
By John H Meyers. 1998-07-22

DE   (details) 48 ENG   3 KB / 1 KB
DIS and ED: front end for ED/TED with undo and automatic assembly/disassembly.
By John H Meyers. 1998-07-21

DISPF   (details) 48 ENG   3 KB / 1 KB
Replacement for the DISP command, allowing one to display a string of text on any line of the current screen (even line 8, if the screen is big enough).
By John H Meyers. 1998-10-10

DOLST and DOSBS   (details) 48 ENG   2 KB / 1 KB
"Normalizes" DOLIST and DOSUBS.
By John H Meyers. 1998-07-22

Eight Line Stack   (details) 48 ENG   2 KB / 1 KB
Tiny eight-line stack routine written in User RPL.
By John H Meyers. 1998-07-22

Encryption   (details) 48 ENG   7 KB / 1 KB
Encryption program; XOR stream cipher with 32-bit random IV, 12-digit numeric key.
By John H Meyers. 1998-07-02

Eq Solver Tools   (details) 48 ENG   2 KB / 1 KB
Some tools for the equation solver to purge unneeded variables as well as an easier to use front end.
By John H Meyers. 1998-07-22

EXCO   (details) 48 ENG   1 KB / 1 KB
Expands and collects and expression until it can no longer be simplified. Tiny, but slow.
By John H Meyers. 1998-07-22

Factor Small Numbers   (details) 48 ENG   3 KB / 1 KB
Can factor any 6-digit number in less than 4 seconds, or any 8-digit number in less than 40 seconds, although most arguments can be factored much faster than these worst-case times.
By John H Meyers. 1998-07-21

Fast Vars   (details) 48 ENG   5 KB / 1 KB
Fast replacement of the VARS command.
By John H Meyers. 1998-07-19

Fibonacci Sequence   (details) 48 ENG   1 KB / 1 KB
Tiny program to generate the Fibonacci Sequence using SEQ.
By John H Meyers. 1998-07-22

FIN49A 2.1   (details) 49/50 ENG   36 KB / 45 KB
ScreenshotFinancial package for the 49G, including Bonds and Stocks, irregular cash flows, etc. Original program written by Don Phillips; 49G port by John H Meyers.
By MacDonald R. Phillips and John H Meyers. 2003-05-21

FIXN   (details) 48 ENG   2 KB / 1 KB
Fixes the number of decimal digits to the right amount for the number on level one of the stack so it is shown with thousands separators.
By John H Meyers. 1998-07-22

Function Table   (details) 48 ENG   4 KB / 1 KB
Shows a table of values of a function like on the TIs and the HP 38.
By John H Meyers. 1998-07-19

Get Equation Library Grobs   (details) 48 ENG   2 KB / 1 KB
Extracts grobs from the equation library.
By John H Meyers. 1998-08-28

Hidden Directory Tools   (details) 48 ENG   3 KB / 1 KB
Small directory of programs to store and recall variables within the "hidden directory" rather than the current directory, without having to do anything to change the current directory.
By John H Meyers. 1998-07-24

HideVars   (details) 48 ENG   6 KB / 1 KB
Small variable hider; works in any directory.
By John H Meyers. 1998-07-02

Hiss   (details) 48 ENG   5 KB
An alternate explanation for the "hiss" that comes out of the HP 48 keyboard.
By John H Meyers. 2008-08-17

Info on UBASE Bug   (details) 48 ENG   4 KB
Information on a bug in the UBASE command.
By John H Meyers. 1998-10-17

Library install/uninstall/backup   (details) 48 ENG   3 KB / 1 KB
Help with installing, uninstalling, and backing up libraries (either along with user memory or directly from port).
By John H Meyers. 1998-07-21

MCHOOS 1.0   (details) 49/50 48 ENG   4 KB / 1 KB
ScreenshotMCHOOS is an elementary User RPL program which allows creating a set of nested CHOOSE levels within a single list of choices.
By John H Meyers. 2006-05-14

Median Bug Fixed   (details) 48 ENG   4 KB / 1 KB
A series of Usenet posts that explain how to fix a bug in the MEDIAN command that is made available by the TEACH command.
By John H Meyers. 2003-01-15

MENUADJ   (details) 48 ENG   3 KB / 1 KB
Protects variables from being accidentally stored over.
By John H Meyers. 1999-01-06

MES and User Equation Library   (details) 49/50 ENG   4 KB / 1+ KB
Explains how HP 48 owners can access the Multiple Equation Solver in the 49 and provides a user equation library.
By John H Meyers. 1999-11-04

Multi-level User Equation Library   (details) 48 ENG   5 KB / 1 KB
Has features resembling the built-in Equation Library, but allows you to supply the equations. It also has units support.
By John H Meyers. 1998-06-08

Numeric Integration Helper   (details) 48 ENG   3 KB / 1 KB
Makes it easier to do numeric integration.
By John H Meyers. 1998-07-21

OBJN   (details) 48 ENG   3 KB / 1 KB
Safer version of OBJ->.
By John H Meyers. 1998-07-22

Order with and without Hack   (details) 48 ENG   4 KB / 1 KB
Shows how to call the ORD function if the Hack library exists, ORDER otherwise.
By John H Meyers. 1998-07-19

PFCTR   (details) 48 ENG   1 KB / 1 KB
An extremely small and fast polynomial factoring program.
By John H Meyers. 1998-01-22

Polynomial <-> Coefficients   (details) 48 ENG   6 KB / 1 KB
Extracts the coefficients from a polynomial and vice versa.
By John H Meyers. 1998-10-14

Print Directory Tree   (details) 48 ENG   4 KB / 1 KB
Prints a directory tree of your variables, including size and type.
By John H Meyers. 1998-07-01

Print Directory Tree   (details) 49/50 ENG   4 KB / 1 KB
Prints a directory tree of your variables, including size and type.
By John H Meyers. 1999-08-13

Purge and Store Prevention   (details) 48 ENG   3 KB / 1 KB
Utility that prevents the accidental purging and storing of variables.
By John H Meyers. 1998-07-19

RAND Tricks   (details) 48 ENG   6 KB / 1 KB
Assembly language source code and binaries to, among other things, recall the previous random number generated with RAND.
By John H Meyers. 1998-12-02

Random Numbers   (details) 48 ENG   9 KB
Lots of information on random numbers with the 48, including chances of getting a repeated number.
By Klaus Wolferts, John H Meyers, and Steve VanDevender. 1999-01-06

RatPower   (details) 48 ENG   2 KB / 1 KB
Computes exact real-valued answers (with correct sign) to, say '(-8)^(5/3)' ==> -32 rather than the usual slightly inexact and possibly complex-valued result.
By John H Meyers. 1999-03-06

Rename   (details) 48 ENG   2 KB / 1 KB
Renames a variable without affecting its position in the directory.
By John H Meyers. 1998-08-29

ROLDXJ 1.0   (details) 49/50 48 ENG   12 KB / 2 KB
ScreenshotVery small (about 1K) yet efficient Rolodex database system for all HP 49/HP 48G series, in directory form (not a library), with case-insensitive general text searching.
By John H Meyers. 2006-05-14

Save Unlimited Last Commands   (details) 48 ENG   4 KB / 1 KB
Uses vectored enter to save an unlimited number of last commands; update on the Vectored Enter Example program below.
By John H Meyers. 1998-08-01

Seeing Garbage Collections   (details) 48 ENG   2 KB / 1 KB
Allows you to graphically see how memory and garbage collections work.
By John H Meyers. 1998-07-22

Set Operations   (details) 48 ENG   2 KB / 1 KB
Performs basic arithmetic operations on mathematical sets, including intersection, union, and XOR.
By John H Meyers. 1998-09-01

Slow Integer Square Root   (details) 48 ENG   2 KB / 1 KB
Calculates the square root of an integer in User RPL.
By John H Meyers. 1998-07-22

SOLVE   (details) 48 ENG   3 KB / 1 KB
Equation solver that acts like the solver on the HP 18C/19B.
By John H Meyers. 1998-07-22

Sort Directories   (details) 48 ENG   2 KB / 1 KB
Sorts the contents of directories so the subdirectories are placed first.
By John H Meyers. 1998-07-22

Stopwatch in RPL   (details) 48 ENG   4 KB / 1 KB
User RPL stopwatch/chronograph.
By John H Meyers. 1998-07-19

SX List Tools   (details) 48 ENG   14 KB / 2 KB
Adds the list management tools that were new to the G series to the S series. Includes DOLIST, DOSUBS, STREAM, REVLIST, DeltaLIST, SumLIST, PILIST, HEAD, TAIL, and SORT.
By John H Meyers. 1998-06-25

SYSEVAL Translator Package   (details) 49/50 ENG   6 KB / 1 KB
Makes it easy to transfer User RPL programs containing SYSEVALs between the 49 and the 48.
By John H Meyers. 2000-01-21

Ten Line Stack   (details) 48 ENG   2 KB / 1 KB
Tiny ten-line stack routine written in User RPL.
By John H Meyers. 1998-07-22

Tiny Spreadsheet   (details) 48 ENG   4 KB / 1 KB
Includes two very small spreadsheet routines.
By John H Meyers. 1998-07-19

Tiny String Viewer   (details) 48 ENG   3 KB / 1 KB
ScreenshotTiny program that allows any string to be displayed one screen full at a time.
By John H Meyers. 1998-07-22

TRI1 Triangle Solver 4.1d   (details) 48 ENG   10 KB / 2 KB
ScreenshotUser RPL program which solves a triangle immediately after being given three inputs. Also solves the dual-solution SSA problem. Includes commented source code and gives information on how to modify it to show both SSA solutions after only running the program once.
By John H Meyers. 1998-07-22

Unit Scaling   (details) 48 ENG   7 KB / 1 KB
Automatically adjusts the unit prefix in steps of 1000 (by multiplying or dividing accordingly, like certain Casio calculators having both ENG-> and <-ENG keys and unit symbols).
By John H Meyers. 1998-07-19

Units   (details) 48 ENG   4 KB / 1 KB
Given a unit object, this program goes to the appropriate unit menu for converting it, plus some other unit conversion aids.
By John H Meyers. 1998-10-15

Unlimited Level Stack   (details) 48 ENG   2 KB / 1 KB
ScreenshotDisplays the entire stack at once, pausing between screenfuls of data.
By John H Meyers. 1998-07-22

UserRPL Port Tools   (details) 49/50 ENG   14 KB / 1-2 KB
Many small (but very useful) programs for managing port memory.
By John H Meyers. 1999-08-13

UserRPL Port Tools   (details) 48 ENG   12 KB
Many small (but very useful) programs for managing port memory.
By John H Meyers. 1998-01-22

Vectored Enter Example   (details) 48 ENG   4 KB / 1 KB
Shows how vectored Enter can be used, with a "Last Commands" function that saves a user-determined number of commands.
By John H Meyers. 1998-07-25

WEIGHT3   (details) 48 ENG   3 KB / 1 KB
Another Weighted Statistics package.
By John H Meyers. 1998-07-21

XC49 3.0   (details) 49/50 ENG   7 KB / 1 KB
XC49 performs hassle-free HP 49G/G+ CAS commands (in RPN mode) so that they don't force you to delete variables, don't fail because of variables which already exist, don't prompt for any mode changes, and don't leave any modes changed after execution.
By John H Meyers. 2006-03-19

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