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Introducing Calcul8r

Posted on Fri 12 Feb 2016 is a new website I've been developing.

It began as an experiment in HTML5 and compiled JavaScript, but has evolved into something vaguely useful.

It's basically a calculator. It has a text box into which you type mathematical expressions in a fairly intuitive form, press enter and it gives you the answer - what could be simpler?


The calculations are performed on your local machine, using JavaScript. But it's not quite as simple as that, because it actually uses the GNU Multiple Precision Arithmetic Library compiled into JavaScript, to perform the calculations. This allows it to support high precision floating point numbers, and very large integers.

The expression engine uses SconeScript, from my Sconeserver project, also compiled into JavaScript.

You can optionally sign up for an account, in which case it will save your history, allowing you to refer back to previous calculations, across multiple devices. It should even work on mobile devices, so long as they use a web browser that supports HTML5.

So go on, give it a go, and let me know what you think!

Updated on 2016-04-22 13:23:48 +0000 | Requested on 2023-01-27 08:57:23 +0000