![]() If anything was missing, we think optional sound(s) to attempt to simulate what you might hear on a keypress, otherwise, that felt a little flat to us. Our math skills are right inline with our graphics and web design skills, so about the only other thing we can say is it also seems to work well. Preferences include settings like single instance, output to gif or text, keep the window on top, and more.įree42 looks identical to the HP-42S, at least as seen here. Other actions include the option to import or export programs, clear or show the printout. ![]() It also has two skins, realistic and standard. P.p.s.Free42 HP-42S Calculator Simulator is am Open Source recreation of the HP-42S Scientific Programmable Calculator and HP-82240 Printer.įree42 has two calculators, binary and decimal. Not really usefull for now, but I think the basic concept should work with more complicated things. You will get the divided value into stackline 1. Then you put your seconds into stackline 1 (no ENTER) and hit F2 - Run to run the little programm. With F2 and Edit again, you return to normal calculator mode. You can only use F2 - edit/run/clr, when you edit, the old program will be erased and only basic arithmetik operators are allowd - no branching, looping or conditions of course, for now.Įxample: you want to calculate hours out of seconds - you can type 60 / 60 / into the editor. P.S: Here is my version 0.2 - Concept reworked - Programm Edit and Run mode added - very buggy and limited, as allready mentioned. The further I step, the more work I see - but it's a lot of fun and I think I will learn a lot with this proggy.ītw.: Congratulation to Erel, who has done a really great thing with BASIC4PPC - it has grown up to a phantastic developement kit, wich is a joy to use! Different modes are really a bit confusing now and I startet to document the neccessaryest with remarks. Startet to implement a program editing- and running-mode, wich is in the very first experimental stage, but the aproach should work in the future. I've reworked the concept - now using somewhat like a state machine to handle the keypresses in different modes. Image buttons is one thing I want to implement when I have the main framework for the calculator more finished. The font for the stack displayis now larger too. Many thanks for your suggestions! The display is only a temporary solution, I have now implementet a third line for status-messages in the top and moved the two stack lines a bit more to the bottom, nearer to the keyboard. RCL - Press RCL and then button 0-9 to recall stored value into stack level one STO - Press STO and then button 0-9 to save Stack level one ![]() Up - pulls the stack - begins with level two so level one stays untouched - (somewhat special, like a history function) You can do more complex calculations like (2+3)*4 in the form: 2 ENTER 3 + 4 * wich saves a keystroke in comparison to algebraic.Ī short description for the special buttons:ĮNTER - Push's the Stack one level upwards. Download rollbacks of Free42 HP-42S Calculator Simulator for Windows. It includes all the file versions available to download off Uptodown for that app. But the normal working sheme with rpn is not to press enter after the last argument, i think, so this should be no problem. If you need a rollback of Free42 HP-42S Calculator Simulator, check out the apps version history on Uptodown. For now it is not possible in my progy to type 2 ENTER 3 ENTER +, like in traditional rpn-calcs, cause the last enter would push 3 into stack-level 2 and operations will only be done with stack-level 1 and 2. Short explenation about rpn: if you want to add 2 and 3, you type 2 ENTER 3 + instead of 2+3= on an algebraic calc. In the future, I would like to implement programming- and graphing capabilitys - F2-key has no funcktion for now, but you can store and recall up to 10 vars and on F1 there are some sciencetific functions - most of the BASIC4PPC-built in math functions. It is not nearly as powerfull as for example, the wonderfull "Free42" HP42s simulator, but it has really big buttons and so one can type on it very fast, without mistakes. I've wrote a simple sciencetific rpn-calc, wich I wan't to build up to a math-tool exactely fitting my needs. ![]()
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