Not as clumsy or random as a computer

... an elegant instrument for a more civilized age ...

(Obi-Wan Kenobi) (last update: 11th March 2020) (last update: 11March 2020)

Collection of Slide Rule replicas

It is a Slide Rule Simulator or Emulator

(Technical information: all replicas can work without any active internet connection and as such, they are digitally safe. The code is hosted on www.github.com.)

In random order:

Quick manual Drag rule or cursor with mouse.

Use mouse wheel to zoom-in or zoom-out.

Click on checkboxes for appropriate actions.

Right-click on cursor or on scale to enter digital values for automation. You can: Enter integer or floating-point value, i.e.: 3.14 (use either dot or comma to separate fraction) Enter degrees using ":", i.e.: 2:30:26 Enter pre-defined constants: pi , pi0 , pi1 , e , e1 , c , c1 , q , r , r0 , r1 Chemical scale may have additional constans. Use air , co2 , h2o , water , etc... To move cursor to additional hairline, press and hold CTRL key while right-clicking on scale and hairline. To move slide to additional hairline, press and hold CTRL with SHIFT while right-clicking on scale and hairline.

You can download the entire collection to your computer and run locally (without internet connection).

The source code is hosted publicly at www.github.com. You can clone the entire repository (rather than downloading the ZIP) if GIT is your preferred version control software.

Once you download (or clone) the entire collection you can start building your own models. Simply, open one of the models in text editor, see how it is constructed and enjoy coding.

(Yes, you will need some JavaScript and HTML skills.)

.... but how do you use a slide rule anyway?

Contact

Mailing List

Links

A sample simulation of Faber-Castell 2/83N replica can be viewed below.

Markings on side. Markings on centre hairline. Markings on additional hairlines. Other side. Version US/German. Short/Long