blog - page 5 | Sean Elvidge

Sean's random musings

A varied collection of thoughts and ideas, usually around statistics, football or generally interesting tidbits.

Maths on a Mug 1

4 min read · January 11, 2016

2016 · mathematics MathsOnAMug
Easy way to remember sin, cos and tan values

One of my tutees showed me an easy way to remember sin and cos values for the “common” angles, and once you’ve got those you’ve also got tan, cosec, sec and cot.

3 min read · December 19, 2015

2015 · mathematics
Correlation between Astronaut name and Apollo mission

Perhaps we’ve finally worked out Deke Slayton's method for choosing the Apollo crews, basing it on alphabetical order…

4 min read · December 15, 2015

2015 · mathematics code
Rooney Scores 50 goals for England – the data

Data analysis of Wayne Rooney's 50 goals for England

5 min read · September 11, 2015

2015 · mathematics football
Safe Reboot of Locked Linux Machine

How to safely reboot a locked linux machine

3 min read · March 20, 2015

2015 · misc
Quick way to remove X Server for running a headless server

Remove X Server

2 min read · May 10, 2014

2014 · misc
Making Files and Folders Lowercase

How to make all files lowercase

1 min read · October 21, 2013

2013 · misc
New Pound Coin

The interesting mathematics of our new pound coin

5 min read · April 16, 2013

2013 · mathematics
Variance in TV Viewing Figures

How many people just turn on How does Grey's Anatomy viewing figures vary over time?

9 min read · April 16, 2013

2013 · mathematics
Velocity Required for Loop-the-Loop

What is the velocity required to complete a loop-the-loop

3 min read · February 21, 2013

2013 · mathematics