Complex numbers occupied only one stack level - like the HP15c but different from the HP41c additional modules. It also has true matrixes and complex numbers built in - as it should be done. Other feature that keeps it midway modern and old design is that it has both registers (like the old HP41c) and variables (like the new RPL machines). But on the other hand, the solver that the HP17bii sibling already had was much more convenient - and I am still using it, 20 years later. It had several advantages over the original: by defining the soft keys at the beginning of the program, they could be made to appear in the second line of the screen. It still uses the RPN solver, equivalent to that of the advantage pack: you create a program and then you apply the solve routine. To make it compatible with the HP41c, HP went back several notches in some of the attributes of the HP42s. On the other hand, compatibility with all the moldings made for the Pioneer series forced the HP42s to be born without expansion ports - it only had a infrared port to communicate with the HP82240 printer. Once HP had moved to the Saturn architecture, and the HP41c started to show its age, HP decided to create a machine that was software-compatible with the HP41c - and much more. But on raw power, the HP42s handily beats both of them. The only other possible competitors were the HP15c (design factor) and HP41c (expandability). However, except the Clamshell scientific-graphic calculators (the diverse HP28 variants), the RPL machines were big and difficult to be considered pocket calculators. This definition discards all RPL calculators, that could be a worthy competitor for the title. I think that very few people dispute that the HP42s is the top RPN calculator HP ever made. We will have to increase substantially shipment costs to the US Now, with tax administrations trying to get resources from wherever they can, procedures are much stricter and therefore expensive. In the past, we were used to close to no paperwork. Even shipping outside the European Union is getting increasingly complicated for small shipments like ours. On a different subject: we are quite sad to not being able to offer a good transport arrangement to our overseas customers. I will post all three in the website as soon as I can take the corresponding pictures. RPN at its best, without its problems (try to use matrixes in any other RPN calculator, except the HP15c) I have been playing with it, and it has warmed again my heart to it. The bezel has some nicks, but barely appreciable. We have also a very good, side-battery door HP19bII, with original manual in French.Īnd a new HP42S, just received. The screen is not yellowish, the box comes with all manuals and even the stickers for your overlays are there! Pictures will follow. There is a new boxed HP41CL in pristine state. I will try to send these thoughts to Moravia, who has been for some years my distributor. These are best covered with the 300s+ and 10s+, and then with the Prime as graphical calculator (which runs circles around most of the competition). However, the calculator market is based on school needs. However, it has the same body and key disposition of the HP42s - so that is another possibility for a scientific calculator (the HP42s has not been bettered in my opinion) - with limited development time (both models could eventually be run on emulation layers with the original firmware) This would open the door for other Voyagers calculators - and I am thinking about my long time love - the HP15c - again.Īmong the units in production we have the HP17bII+ - which is an excellent product and the most powerful current financial calculator. Rumours are that the HP12c will be put again in production (despite being in some dealers' inventories, it has been discontinued for at least 4-5 years). A customer called me on Friday, and he told me "I want a RPN scientific calculator" - then I realized that there is no scientific RPN calculator anymore!!! Now that the calculator business is in the hands of Royanl and Moravia, let's see what could be our wishist, now that the HP35s has been discontinued.
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