Mathematics

## The Crawshaw Method (for Quadratics)

Something all GCSE maths students (and above) need to know, and something that a large number of people use everyday, is how to factorize quadratic equations. However I’m amazed how few people know a decent (and easy) way of doing this!

Science

## A Short History of Nearly Everything – Some Corrections

I have just finished the book “A Short History of Nearly Everything” by Bill Bryson and I thought it was absolutely fantastic. There were a couple of mistakes that I noticed (and perhaps others that I did not! – and of course by ‘noticed’ I mean didn’t believe the numbers and so checked them out […]

Misc

## Septentrio Receiver – Out of Geofence

A quick post, in a very small topic area. But one – that as far as I can tell – isn’t on the internet anywhere. That is if a Septentrio Receiver gives an ‘Out of Geofence’ status error.

Mathematics

## Sine Rule on a Sphere

A couple of days ago I wrote a post on what, and how to find, the cosine rule on a sphere. In this post I’ll show you the sine rule on a sphere.

Mathematics

## Cosine Rule on a Sphere

As all (well, at least those that can remember) 15+ year old’s know, to find the length of a side of a non-right angled triangle you can’t use Pythagoras theorem and instead require the so called ‘Cosine Rule’.

Mathematics

## Recurring Decimals – Something on the Repetend

I have no practical application for what I am going to post about today (although that doesn’t mean there aren’t any), but I “discovered” (okay so I know loads of people will have done it before, but it was a personal discovery) a nice little fact about recurring decimals.

Internet browsers are of fundamental importance to surfing the internet, you are using one right now! There are many debates about which browser is the best, and at some point I hope to write my own, I use Google Chrome and want to talk about my top 19 Google Chrome extensions. Extensions which will improve […]

Linux