Smart Slide Rule

5.0
11 reviews
100+
Downloads
Content rating
Everyone
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About this app

* An app simulating a slide rule! *

Smart Slide Rule reproduces a slide rule (slipstick) with A, B, C, CI, D, S, L, T, and K scales.
A slide rule is a mechanical analog calculating tool that uses the principle of logarithms.
The slide rule appears as an important prop in the movies "Apollo 13" and "The Wind Rises".
This application reproduces a slide rule on the screen of your device.
The front side of the slide strip corresponds to the B, C, and CI scales, and the back side corresponds to the S, L, and T scales.
You can move the slide strip and the cursor.

* With instructions on how to use the slide rule! *

The slide rule uses a logarithmic scale to calculate multiplication, division, exponentiation, square root, and trigonometric and logarithmic functions.
This application features an explanation of how to use the slide rule, so you can learn how to calculate.
Since the calculation is performed in pixels of the device screen, the accuracy of the calculation cannot be guaranteed.
Updated on
Nov 12, 2022

Data safety

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5.0
11 reviews
David Whittaker
September 20, 2022
The slide rule part of the app is clean and simple but the instructions could be improved. As one of the important uses of this app is educational I think some extra effort in teaching how to use a slide rule would be well worth while to make this a really great app. I hope the developers continue this them as there are many mechanical mathematics machines I would like to experience.
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Kyle Oyama
November 22, 2021
App works as advertised. Simple, to the point, no IAP, no unnecessary permissions, small footprint on my device. Awesome. It also works in portrait mode. 5⭐s!
2 people found this review helpful
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Andrew Chung
November 2, 2022
love the app .. BUT log table is wrong (or inverted) .. eg. log 4 = 0.602, the ruler shows 0.602 BUT the table shows D=4, L=3.98 (shld be 6.02). Please help fix.
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What's new

Minor corrections and improvements