Just a little note that I use MathJax for my mathematical posts, and this is the ONLY scripting (so far) that I throw into my blog.

Here are some of the resources I use for MathJax:

http://meta.math.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference

http://www.suluclac.com/Wiki+MathJax+Syntax

and here's how I add it:

http://mathjaxtest.blogspot.com.au/

The one thing missing in this post, however, is that you need to close the </script> tag. :/

## Sunday, 22 March 2015

### Why does e = 2.71828183? Or how e SHOULD have been discovered.

This is an interesting exercise to do with higher level mathematical students - it shows them that the value of $e$ can be derived purely from it's differential properties.

So we start with the fundamental property of $e$, that $D(e^x)_x = e^x$.

In short, we're looking for the

(As noted in previous posts, I'm using a differential format similar to sagemath's default format.)

So we start with the fundamental property of $e$, that $D(e^x)_x = e^x$.

In short, we're looking for the

__- what function stays unchanged.__**identity function of differentiation**(As noted in previous posts, I'm using a differential format similar to sagemath's default format.)

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