If you attempt this, please let me know what you think. You should be able to sideload the app on an iPhone 6 running iOS 9.0+ by building it with Xcode 7. Initially, I started off with a completely object-oriented approach, but abandoned this due to my inexperience with Swift. A scientific RPN calculator inspired by traditional HP calculators but created specifically for the iPhone and iPod touch. Of course, there are alternatives on the app store, but making my own app was good practice. This was my second iOS app, and I personally wanted a basic stack logic calculator app on my phone for calculating tips, etc. An explanation of how RPN works is beyond the scope of this readme, but in essence this calculator works similarly to most HP calculators, so if you've used one before, you should be at home with TZYX. The calculator makes use of stack logic, or reverse polish notation, for calculations. The layout and functionality was inspired by the great Hewlett-Packard 42S RPN Scientific calculator, but its functionality has been simplified to that of a standard pocket calculator. Split-screen and multitasking support for iOS 13.TZYX is a simple stack logic calculator for iOS.Ability to lock orientation (into portrait or landscape) Go retro with this advanced programmable PRN scientific calculator.Preferences to set the number of digits, angle mode, number base, display format, wordsize.Degrees, radians, and grads angle modes.Over 400 built-in functions, including over 100 functions created specifically for i41CX+. 319 main and 600 extended memory registers. CALCULATOR FEATURES: RPN logic with a 4 element deep memory stack. Status indicators for shift state, angle mode, and financial annuity mode. This is the finest and most powerful scientific/engineering/financial calculator for iOS devices bar none.16 digit display with SCI, FIX, and ENG formats.It has an interface that users RPN calculators will be completely at home with, including these. IEEE Double precision accuracy (about 16 digits) RpnCalc is the best RPN calculator on the Android Market.IPhone or iPad running iOS 9.3 or higher. ![]() It emulates one of the best programmable rpn calculators ever and can also. On iPad, press the rotate button to switch between keypads. So far pretty much every scientific calculator app that Ive come across is. Simply rotate the iPhone to switch between landscape and portrait keypads. MathU RPN for iPhone supports both a portrait and landscape keypad. ![]()
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