![]() * Added display option to show flags 0-4 at the top of the display if they are set. Swiping the LCD left or right performs these operations. * Added Undo and Redo functions for the stack. * Added hi-rez (retinal) key pad image for iPhone 4 * Compatibility with iOS4 including application switching and compatibility bugs * Program mode can now be scrolled with the menu active. * Added option to remove device status bar for a larger LCDĪdded additional lines to LCD modes, now supports up to 6 lines of stack, or 7 lines of program. * Added DROP command, executed by doube tapping the back key * Added option for no stack lift on Enter. Choose between the traditional (X, Y, Z, T) style stack, or a fully dynamic stack. * Added option for a dynamically sized stack. * Tap LCD in alpha entry mode to toggle the display of the iPhone keyboard. * Display last x register in the upper right hand corner of LCD ![]() * Double tap print output view to copy print contents * Sound tones mimic those of the original HP-42S * swipe LCD vertically on the right hand side to roll stack contents, or to scroll a program in program mode. * Double tap LCD to cut and paste one or more numbers from the stack, or paste one or more numbers to the stack * Swipe LCD vertically to get up to 7 lines of display. * Runs several orders of magnitude faster then the original calculator, including program execution, solving, integration, matrix operations, etc. * Use the iPhone keyboard for entering character data, or variable names. * Internally stores values and performs operations in 25 digit decimal precision. Packages are available for additional functionality including Engineering, Scientific, Financial, Statistical, etc. Additionally, several enhancements have been made over the original calculator such as additional precision and the ability to import and export programs. This calculator provides all the functionality of the original 42S with several hundred functions, programability, printer output, etc. There are no ROMs or emulators involved allowing 42s to run natively and fast. (I didn't buy a new one from Amazon because some of the feedback comments indicate they are not really brand new, that's pretty bad so I went to ebay and got used but in as-new condition, my unit is fine and was 30 bucks less than Amazon).42s is an iPhone port of Thomas Okken's excellent and stable Free42, a complete re-implementation of the highly praised HP-42S RPN calculator. So if you're in the market for a decent real calculator I'd definitely recommended the HP Prime G2, RPN is optional and fully supported. Now I can do calculations and not have to scroll the result and the display is far better than the HP 35s. This is after a lot of investigation, it is rated better than the top range TI graphing calculator too. So I now found - and got from ebay - a very good and newer HP, the HP Prime G2 calculator, which has recently been discontinued (rumors are that HP are getting out of the calculator business). Now I did get a pretty good HP 35s calculator about a year ago, didn't use it much until recently and it is very well built, the colored keys and key quality is as good as it gets with a calculator, but the display is not lit and is rather basic LCD screen, and often a result that has lots of digits must be "scrolled" to see the full value or to see the exponent and this started to annoy me. HP42S HHD10214 6V Dog Collar Battery Designed for Dog Guard dog collars and receivers, Perimeter Technologies R-21, Invisible Fence 700 series, and select Pet Stop models Is also used in select calculators, cameras, flashlights, and watches Comes with a 6-month warranty 14. I know we have computers now and they blow calculators away functionally, but it is so much more focused to work with a dedicated calculator, or stand at my white board calculator in hand working through some calculation. My dream machine was a TI-59 but it was simply unaffordable as was the almost as good TI-58.Īnyway back to the present as I'm refreshing my knowledge of electronics and LC circuits and basic differential equations and complex numbers, I wanted a calculator that I could use, much as I would as a teen, sitting with pen n paper and working through examples or questions. ![]() Anyway back then the first electronic calculators were coming out, stuff you could see in high street stores and advertised in electronics magazines, this is when the term "electronic slide rule" began to appear.Īs a result I spent a huge amount of time using calculators for electronics when I later went to college and was impressed by what was around back then. When I was a kid in the late 70s I was very much into electronics as a hobby and was quite focused on science in school, especially physics.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |