![]() I also download a bunch of RPN calculator apps on my phone and find the wonderful Free42, an HP-42S clone. “Man, I wish I could buy an HP-42S still.” FREE42 PROGRAMS IMPORT DOWNLOAD The 50g is a large graphing calculator and is completely overkill for what I need. HP has also released its next generation calculator at this point, the HP Prime, but it’s also complicated, had more limited RPN at the time, and has a rechargeable battery that doesn’t last ‘forever’. For complicated stuff, I’d rather go to python or something. I want a smallish calculator that I can bang out some quick calculations on, not have it go to sleep on me, and only need its battery replaced once a year. The 35s is decent but has some annoyances, mostly with its display, the inability to backup to a computer, and partially with its programming limitations. There's a link to it on the SwissMicros website or, if you want to support this MoHPC website, you can do what many of us here have done and purchase the USB stick that is crammed full of information (including the HP-42S manual) and worth every penny.ĭisclaimer: I have a (non-financial) interest in SwissMicros in that I collaborate with Michael & David in some aspects of product design and I run the SwissMicros forum.It’s still better than the other options. Secondly, download a copy of said HP-42S manual. This will prime you about features that are not available on the HP-42S (I/O, screen resolutions and virtual variables) and it will save you a lot of head scratching when you go through the HP-42S' manual and see things that are not exactly identical on the DM42. Start by going through the documentation that's specific to the DM42. You can jog up the curve without even breaking a sweat. There is a learning curve if you're unfamiliar with RPN and have no prior experience of the HP-42S or the HP-41C, but it's really not steep at all. I just ordered it and was wondering how much of a learning curve there was going to be. ![]() (12-11-2018 05:11 AM)Larry Hiatt Wrote: Thank you for the info. Please feel free to share your feedback once you've used your DM42 we all like hearing how a new user feels about a product we love. It is safe to say that if you get different results using a 42S and Free42 (including the DM42) it's because Free42 uses greater internal precision, and even then there is an alternate (binary) version available, if identical results are needed (for some odd reason). There are even a couple cases where the 42S design 'got it wrong' (aka could have easily been done better) and Free42 still accurately reproduces how a 42S will act. ![]() I've never used any product simulation that is as accurate, and I've tried lots (and lots!) of them. Thomas' Free42 is a painstakingly accurate simulation of the 42S, honed to perfection over many years and thousands of happy users. But your experience with the 42S, or learning from the 42S manual, fully apply. while I am eating for it I am wondering if it's keyboard programming is anywhere close to any of the HP calculators? It looks like it might be.Ī simpler and more direct answer is the DM42 programming is exactly the same as the 42S, with the only exceptions being those few cases where the DM42 has enhanced some features, which as Thomas pointed out are covered in the DM42 manual sections. (12-10-2018 11:39 PM)Larry Hiatt Wrote: I just bought A SwissMicros DM42.
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