![]() And if you want to try them out, we’ve put together a free guide that can help you. We have a set of custom productivity templates that work well with the iPad app, GoodNotes. But even after eliminating those from consideration, there are still a ridiculous number of calculators available for the iPhone. ![]() A lot of these are special-purpose apps-tip calculators, weight-loss calculators, mortgage calculators-that we’re going to ignore here. ![]() Unfortunately, a search for “calculator” on the App Store turns up over 2,000 hits. A good calculator app on your phone can save you a lot of time. And, when the calculator is an app on the phone that’s always with you, the efficiency is even greater. Calculators are tremendously efficient when the work requires only a handful of operations rather than hundreds. For lots of calculations, setting up a spreadsheet is just too fiddly and time-consuming. But that doesn’t mean calculators are dead. Spreadsheets and systems like Matlab and Mathematica have taken the place of both the calculator and the pad of paper when the analysis gets deep and complicated. Nowadays, I wouldn’t dream of using a calculator that way. In those days, hours of repetitive analysis would be done with a calculator sitting next to a pad of paper-one for running the numbers, the other for keeping track of the logic. When I went off to college, electronic calculators had only recently supplanted slide rules as standard equipment for engineers and scientists, and professors were lamenting their new students’ pathetic underappreciation of significant digits. It is a professional, accurate, full-featured scientific calculator designed for the iPhone, iPod touch, and iPad.Calculators and I go way back. SUMMARY OF BUILT-IN FUNCTIONS- Scientific: trigonometric, hyperbolic, and logarithmic functions degrees/radians conversions time and angle conversions physical constants- Statistical: two variable statistical analysis including mean, weighted mean, standard deviation linear regression forecasting, correlation coefficient probability calculations- Financial: time value of money, amortization discounted cash flow analysis for internal rate of return and net present value interest conversion between nominal and effective rates margin and markup calculations- Date and Time: date arithmetic duration arithmetic and conversions including frames for digital video editing moment conversions- Programmer: base number conversions between binary, octal, decimal, and hexadecimal 32-bit, 16-bit, and 8-bit signed and unsigned integer math calculations and conversions logical and bit-manipulation operations- Conversion: length, area, volume, speed, weight, temperature unit arithmeticSUMMARY OF FEATURES- UI designed specifically for the iPhone, iPad and iPod touch- Multitasking support for use with other apps- Unique Dynamic Keyboard technology- User-selectable themes- Multiple keyboard layouts- 12-digit display with thousands separators- Labeled results for clarity- Optional RPN input method- Selectable RPN stack size- Up to four display lines- 20 or 100 user registers- Multi-level Undo/Redo- Macro record and playback- Extensive user guide The intuitive keyboard design provides efficient access to over 230 financial, statistical, scientific, programmer, conversion, and date and time functions without having to access menus or lists of functions. NeoCal is an advanced, award-winning calculator designed to work just like a real calculator, only better.
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