HP48

Brain Calories
Here's a new use for the "-" key: According to the American Cancer Society, various activities have different calorie-burning impacts on health. The following data caught my eye: ACTIVITY ---> Calories Burned Per Hour Sitting ---> 81 Watching TV ---> 72 Assuming that most people watch TV while sitting, and... 4 Oct 2006 14:44

ROM source code and NDAs
The HP48 series have been discontinued for some time now. Is it possible to obtain the source of the ROM for noncommercial / educational purposes if we are willing to sign away any NDAs and left kidney? Or is that just completely out of the question since bits of the ROM still exist within the HP49/50 series? ... 3 Oct 2006 18:00

SysRPL Question
I am considering learning SysRPL but am a little frustrated. I have downloaded the Eduardo & Carsten manual. I have been programming (PC's) for over 17 years, but am frustrated because I like to fully understand each instruction and the documentation doesn't seem so exist. Anyway, can someone please tell me what... 6 Oct 2006 05:00

HP49G+ Summation execution time
Is it just me or has one of the recent updates to the HP49G+ improved the speed of execution of summations ( using sigma notation )? I've been using the TI-V200 for summations of user-defined numeric functions because it was always faster than the HP... now I notice the situation is reversed - a welcomed surprise... 3 Oct 2006 09:59

FA: Casio CM-100 Computer Math Calculator
Casio's inexpensive alternative to the premium HP-16. Does base conversions, bit shift & rotation, and boolean math functions. Looks great, works 100%. Seldom used since purchase in late 80s. No reserve, starting bid $0.01. eBay item # 140036817700 ... 30 Sep 2006 23:21

Equation collection
Hi, I've been using my HP50g for a little less than a week, and I'm on the process of getting acquainted with it. I thought of a feature that is not built-in, and was wondering whether there is a program or a library that would let me do it. What is the best way to create some sort of equation collection? I li... 2 Oct 2006 16:44

Birthday Puzzle
I was at work trying to do the maths for the following. Checksum 100 files createing a 32-bit checksum. Whats the probability of two or more files out of 100 have the same checksum? I know this is the birthday puzzle (how many people in a room required to have a P >= 0.5 of having the same birthday). I thou... 5 Oct 2006 08:35

Slow calculations on HP50
Hi Gang, I just downloaded the brilliant debug4x emulator and was playing on the HP50g emulator. ROM 2.09. Without really changing any default flags, i tried a few calcs. I like ->SZ and ASM to decompile/recompile the RPL code. Was playing with this: sqrt(2) in symbolic mode on the stack. Enter "2", and ... 30 Sep 2006 12:29

Problems with reading text files created on PC
An exhaustive search through the archives has left me with more questions than answers, so here goes: I want to be able to create "documents" on the PC that include text and some equations, and then be able to transfer them to the 49G+/50G for later reference. I have tried using Notepad on the PC, and using DocFi... 1 Oct 2006 21:53

problem connecting XP to 50g
Uninstalled 49g+ conn4x Uninstalled USB driver Installed latest Conn4x (Sept 01 06) from HP web page Installed USB (used the binary Windows picked when 3 choices came up, it's dated 2004-01-03, ver 1.2.0.0) XP said device is ready to use after installation. When I plug in the 50g, XP recognizes it and shows it ... 3 Oct 2006 09:59