# Author Archives: Sean

## Dealing with WordPress Security Issues

Recently another WordPress site that I manage has had a lot of malware issues.

## Maths on a Mug #15

#mathsonamug #maths #newpoundcoin pic.twitter.com/lMQm5uOUyl — Sean Elvidge (@seanelvidge) November 4, 2016 Keeping with the theme of yesterdays blog post about the new pound coin and shapes of constant diameter here is a nice little result known as Barbier’s theorem. Simply, it … Continue reading

## New Pound Coin

Anyone who knows me / has been lucky (!) enough to have been on a maths or physics course taught by me will know how I like to moan about the mathematics of the new pound coin…

## Number of days until first Premier League manager sacking

I’ll get straight to the point, on average the first Premier League manager is sacked after 77 days.

## Rooney Most Capped Outfield Player – updated data

About a year ago I wrote a post examining the data when Rooney become England’s highest ever goal scorer. Now he has become the most capped outfield player I thought I should update the stats.

## Relegated Stadia from the Premier League

From the Premier League this season (2015/16) Aston Villa, Newcastle United and Norwich City were relegated. This represents the largest capacity of stadia relegated from the division since only 3 teams were relegated (a total of 122,331). This post contains … Continue reading

## Maths on a Mug #14

#mathsonamug #maths #puzzle pic.twitter.com/jbbehLQbp7 — Dr. Sean (@seanelvidge) January 29, 2016 A question I really like because of the logical way of thinking about the answer. First we assume that we do not allow the trivial answer where \(n=m=q=0\). Then … Continue reading

## Maths on a Mug #13

#mathsonamug #maths pic.twitter.com/zzl8CjKZ3o — Dr. Sean (@seanelvidge) January 26, 2016 A classic! This is my favourite result from Graph Theory. The branch of mathematics invented by Euler, this theorem is known as Euler’s Formula. It is a remarkable fact that … Continue reading

## Maths on a Mug #12

#mathsonamug #maths pic.twitter.com/7GmWSFAfYP — Dr. Sean (@seanelvidge) January 25, 2016 One of the more common things that I’ve been asked recently. Mostly this comes from people who have watched the incredibly successful Numperphile video, but the result was well known … Continue reading

## Maths on a Mug #11

#mathsonamug #maths pic.twitter.com/REPJ4xFhT9 — Dr. Sean (@seanelvidge) January 22, 2016 Primes. Primes. Primes. The hunt continually goes on for the next biggest. Well, yesterday, we found a new largest. \(2^{74207281}-1\) is the 49th Mersenne Prime that has been found. It is 22,338,618 digits … Continue reading