DB40X vs TickStack

DB40X is a high-precision scientific calculator compatible with DB48X and inspired by the legendary HP48 series from Hewlett-Packard. It is not an emulator, but a redesign from scratch, which is faster, and delivers never seen before capabilities like computations in arbitrary precision. Like the original HP48, DB40X supports an unlimited stack, RPN and algebraic operations, complex numbers, based numbers, vectors, matrices, text, symbolic computations, numerical solving and integration, graphing and plotting, statistics, engineering units, and well over 1000 built-in functions. DB40X adds several HP50G capabilities, including a library of equations and constants covering mathematics, physics or chemistry. Using modern technologies, DB40X goes well beyond the original HP48 in many ways: - It is significantly faster, uses less memory, and features a higher-resolution 240x400 pixels graphical display. - Integer and decimal values can have an arbitrarily large number of digits, so you can compute log(pi) with 200 digits in a few keystrokes. - The six function keys feature up to three function per key, giving quick access to up to 18 related functions at a time. - Complex numbers can mix and match polar and rectangular form. - Symbolic operations extend to complex numbers, vectors and matrices. - Based numbers can be in any base from 2 to 36, and support any number of bits, making it easy to emulate a 23-bit or 512-bit processor. - Text is represented using Unicode instead of the proprietary HP encoding, facilitating data exchange with the rest of the world. - Multiple graphs can be distinguished using bitmap patterns. - Engineering units include all the modern evolutions of the SI system, and can be configured by the user, e.g. to integrate currency units with the exchange rate du jour. Converting between USD/hour and EUR/day has never been so easy! - A built-in hyperlinked help system documents functions simply by holding the corresponding key, and combine a quick start guide, a user manual and a reference manual. DB40X will run many user RPL programs as is. However, since it is not an emulator, it will not run any HP binary object, and notably will not run HP48 games or anything involving system RPL. Version 0.7.14 is an early-access release. Please consult https://github.com/c3d/db48x/blob/stable/doc/5-Unimplemented.md for a list of HP48 commands that are not yet implemented. DB40X is part of a family of compatible RPL calculators that include DB48X and DB50X. DB40X lacks the ability to write programs or data to disk, and RPL programs are limited to 40K.

Life has a lot of timers. Now they all have a home. TickStack lets you create, organize, and run multiple timers at once — for cooking, working out, laundry, deep focus, plants, and everything in between. One app for every countdown in your day. - Run everything at once Start your pasta timer, your laundry timer, and your focus block simultaneously. TickStack keeps them all running in the background and notifies you the moment each one finishes. - Built-in library of ready-to-use timers Don't want to set it up from scratch? Browse pre-made timers for boiling eggs, brewing coffee, power naps, stretch breaks, watering plants, rest sets, and dozens more. Add any to your home screen in one tap. - Organized by category Cooking. Fitness. Work. Home. Plants. Hobbies. Life. Every timer lives where it makes sense, so your egg timer and your HIIT rest timer don't end up in the same pile. - Always visible with home screen widgets Glance at your active timers without opening the app. TickStack widgets keep your countdowns front and center right on your home screen. - Pick your sound Choose from five distinct notification tones — Two Bells, Bell & Drop, Doorbell, Kalimba, or Kitchen Bell — so you know exactly which timer finished just by the sound. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/