MathJS A Math Library For JavaScript
MathJS A Math Library For JavaScript
Written by Ian Elliot   
Monday, 06 January 2014

What a language is good at depends a little on its basic syntax and semantics, but a whole lot more on what libraries are easily available. If you don't think of JavaScript as a math language then perhaps you need to meet Math.js.




Math.js is a simple extension to the standard Math object that you should be familiar with. For example 


returns 2 raised to the power 3. Math.js also has a pow function but it can raise complex numbers, big numbers or matrices to a power. 

One of the most important features of Math.js is that is supports a range of data types and, as far as possible all of its functions work with all of the available data types. You can use standard number, Bignumber i.e. arbitrary precision, complex numbers and matrices. You can also define units for physical calculations.  

For example:

var a = math.complex(2, 3); 
var b = math.complex('4 - 2i'); 

defines complex numbers and you can work with them using


and similar functions.  You can also use the eval method to work out arithmetic expressions involving any of the data types without having to use the special functions. For example:


does complex addition if a and b are complex.

As well as the basic operators, you also have some more advanced function such as math.inv to find the inverse of a matrix and a small number of probability and stats functions.

It has to be admitted that the range of facilities doesn't put Math.js into same class as Python's NumPy, but it is heading in the right direction.  You can use it in the browser or as a Node.js library and, of course, it has the advantage of working in the same way on the client or server. It is open source and you can alway help extend it.

The big problem with JavaScript and number crunching is speed. It would be interesting to see if Math.js could be optimized by introducing the asm.js data types. This would be a lot of work but the result would be something that worked at close to the speeds achevable by native code.  



More Information

Related Articles

Asm.js Gets Faster       

Free Sage Math Cloud - Python And Symbolic Math

GUI For GNU Octave 3.8 

JavaScript Data Structures - Typed Arrays I

JavaScript Data Structures - Typed Arrays II



To be informed about new articles on I Programmer, install the I Programmer Toolbar, subscribe to the RSS feed, follow us on, Twitter, FacebookGoogle+ or Linkedin,  or sign up for our weekly newsletter.






or email your comment to:



Canada's RAND Immigration Lottery Not Random!

Well of course it isn't, but that doesn't stop people who should no better from stirring up a mock disgust and alarm. Oh dear we programmers are at it again, cutting corners with our job lot of not-qu [ ... ]

A New Type Of Drone

We are well beyond peak drone - to be more accurate beyond peak drone videos. There doesn't seem much left to do but find applications. A tricopter is a bit special and interesting to watch.

More News

Last Updated ( Monday, 06 January 2014 )

RSS feed of news items only
I Programmer News
Copyright © 2018 All Rights Reserved.
Joomla! is Free Software released under the GNU/GPL License.