Not recently updated — last update was on 2017-10-28.
This app may no longer be actively maintained.
About Digital Slide Rule
Digital Slide Rule is an education app developed by The Animated Software Company.
How many times has Digital Slide Rule been downloaded?
Digital Slide Rule has been downloaded 14 thousand times. In the last 30 days, the app was downloaded 1 times.
What is the rating of Digital Slide Rule?
Digital Slide Rule is rated 3.55 out of 5 stars, based on 76 ratings.
Is Digital Slide Rule free?
Digital Slide Rule is free to download. The APK download size is 44.16 MB. The latest version available is 4.06.06. The last update was on October 28, 2017.
What are the requirements for Digital Slide Rule?
Digital Slide Rule requires Android 2.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play May 2016.
Description
The slide rule was used for over 400 years as a calculating/estimation tool. Abandoned with the advent of hand-held calculators, computers and smart phones, their elegant simplicity is still a thing of wonderment. This program replicates the most common types of slide rules: Straight, circular, spiral and cylindrical. Dozens of scales are included and numerous features that could never exist on a physical slide rule are also included, such as color options, numeric displays of the values under the hairlines, and so on.
Slide rules were used to go to the moon and to build bridges, skyscrapers, tunnels, aqueducts and nearly everything else. Slide rules were simple to use and accurate enough for most occasions.
Please note that this program is processor-intensive and with heavy use, will probably drain your battery fairly quickly. Every effort has been made to make the program efficient, but nevertheless, some functions take a few moments to occur, including initial load, which can take three or four seconds, or perhaps a little longer. Nearly 30,000 "nibs" are created during this time, as well as over 3,000 labels, so please be a little patient!
Because of all the detail, it looks best and runs best on a large-format machine such as a tablet. Also because of all the detail, the 30-loop spiral slide rule converts to a low-rez "bitmap data image" while you move it, then back to a "vector based image" as soon as you release.
Includes a brief side show slide show of famous and interesting slide rules, most of which are in the author's collection. Two are public-domain photographs of antique slide rules.
Notes on usage: Program features include "two-finger pinch/zoom." Slide rule slide show images can also be rotated. Enlarge an image by double-tapping in the same place. Tapping three times in the same place will return the program to the home position. Tapping four times will bring up an intro-screen message which requires tapping anywhere to remove.
This program was first released in 2016 and is the product of a lifelong love of numbers (and 30+ years of programming experience!).
Special thanks to the Oughtred Society for their member's invaluable help in evaluating the earliest versions of this program.
Recent changes: Faster setup time after program is loaded (as much as 50% faster); streamlined internal processing (especially of Cylindrical Slide Rule); corrected "Display Estimated Hairline Values" for several of the alternate scales.
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Works great! Oh sure a real slide rule would be faster, but for a phone (s8) screen it's terrific. And fun to try to remember how to do things on a slide rule
★★★★★Stefanie Daniella· Dec 5, 2017
Excellent! Prefer digital values on linear slide rule to remain showing without touch-hold line to see values. For large apps like this, I just stop unnecessary app processes to free up memory to make this app run quickly
★★★★★bob betts· Dec 17, 2018
Good app to learn the basics of using a slide rule. A little clumsy on a touch screen (for old aged hands).
★★★★★sibco96· Nov 17, 2018
Really cool overview of slide rule history, types, and use. The developer put a lot of thought into this.
★★☆☆☆David Whittaker· Nov 7, 2021
Needs more work. Some of us actually would like to use the app to do calculations rather than just learn about slide rules. If you just want to learn about slide rules then this app is probably for you.
★☆☆☆☆fred derf· Apr 19, 2019
Tried to download and looks like it installed but can’t find it and no explanation what to do next
★☆☆☆☆Liam Shannon· Oct 25, 2017
Janky and slow. Edit in response to developer: Apologies for my brevity in review. I am Running on galaxy S5. It is so slow that it is completely unusable. I am talking like 5-second input lag. I understand the desire to fit more features, but they are currently not useful as the app does not function at a basic level.
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Technologies used by Digital Slide Rule
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