12/19/2023 0 Comments Rpn scientific x![]() RPN Calculators (such as the HP48) are stack based, where values are popped from a stack, and the results of the calculation are pushed back onto the stack. On HP RPN calculators, clicking on PI pushes values on the stack and enters PI in the X register.Main Menu | Calculations | Scientific CalculatorįieldGenius includes an RPN (Reverse Polish Notation) Calculator. So, it is more a glitch than a bug.Īgain, with something in the X register, clicking on PI gets PI in the X register but the previous value is lost. ![]() Try any operation that leaves a value in the X register, like 4 ENTER 5 +. However it looks like it is indeed saved internally and is used correctly for the next calculation. do not show that the previous entry in the X register is pushed on the stack since it disappears from view. With some value sown in the X-register, entering a fraction number starting with. Referring to the two bugs I mentioned, I must precise that I am using the RPN mode. After all French is my native language :) Yes you are right, “there’re” is correct. I’d be delighted to be shown that my understanding here is somehow twisted. ![]() The limited Help does not seem to discuss the basics of RPN, which very much depend on understanding which register is which. Of course, all of this depends on the user conceptualizing the registers as X, Y, Z from bottom to top (and from most recently entered to earlier entered and earliest entered). But I feel a bit like trying to conform to a requirement that I accept that the plus key is really a minus key and vice versa. One might ask, why not just accept, remember, and carry on, which I guess I will. ![]() HP’s calculators label these keys as I suggest, which is clearly correct - it seems to me - and not merely a matter of convention. The xˆy key, for example, should be labeled yˆx, which is the operation performed, i.e., the number in the higher register on the display (the “Y” register) is raised to the last number entered, which is on the bottom of the display and is the X register. To my thinking, the exponentiation keys on the calculator (Scientific, RPN mode) are mislabeled. There is no built-in programmer calculator on iOS, however, so you’ll need to stay on the Mac for that. If for whatever reason you need to access two different calculator types at the same time, you’d need to run another instance of the same Calculator app and switch the calculator type in the new or old instance to reflect that.ĭon’t forget that iPhone has a calculator as well, which, if you just rotate it sideways, converts to a scientific calculator as well. Once you’re in Calculator app, you can instantly switch between any of the three available calculators with simple keystrokes: For example, pi: 3.141592653589793 Keyboard Shortcuts for Switching Calculators in OS X This is what the programmer calculator in Mac OS X looks like:Īnd this is what the scientific calculator in Mac OS X looks like:Ĭalculator RPN Mode can be accessed by hitting Command+R or by enabling it from the View menu.īoth the talking calculator and the paper tape will work with the alternate calculators as well, which can come in handy to keep track of what data you’re working with.īy the way, you can copy (and paste) anything from Calculator app in OS X too, both from the calculator and from the paper tape. The programmer calculator works with hexadecimal, decimal, binary, ascii, unicode, and the scientific calculator supports scientific notation, logarithmic, exponential, constants, exponents, fractions, roots, and all else you’d expect. Pull down the “View” menu and select either “Scientific” or “Programmer”Ĭalculator app will instantly transform into which alternate calculator you chose.Open the Calculator app from /Applications/, Spotlight, or Launchpad.Here’s all you need to do to switch calculator modes on the Mac:
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