Welcome to

On this website, you can find my blog and a collection of Sunday afternoon maths puzzles. You can use this handy tool to help you decide what to do first.
Recent blogs (click to read).
My most recent blog post is Big Ben Strikes Again. Other highlights of the blog include:
If you're not sure where to start, you could try reading a random article or taking a suggestion from this handy tool.
 Sunday afternoon maths puzzles 
Recent puzzles (click to read).
New puzzles are posted on many Sundays, with answers posted on Monday. The most recent collection is Sunday Afternoon Maths LXI. Pictures from recent collections are shown above and below.
Some of my favourite puzzles are:
Again, a random puzzle or a suggestion from this handy tool could be good places to start.
 Who am I? 
My face.
I am Matthew Scroggs. I like maths.
I have a Master's degree in mathematics from Oxford University. I am currently studying for a PhD in maths at UCL, where I work on finite element methods and boundary element methods. As part of my PhD work, I develop the open source boundary element method library Bempp. Between Oxford and UCL, I worked as a maths teacher in a secondary school. You can find more about my work on the academic page.
You can regularly find me at London MathsJam (second last Tuesday of the month), and EMF Camp (every two years). I write the crossnumber (as Humbug), puzzles and articles for Chalkdust Magazine. For more non-work related articles and talks, see the recreational page.
If you would like to reuse any of my content, please get in touch.

Some Numbers

 I have written 45 blog posts.
 I have posted 153 puzzles.
 I have tweeted 3566 tweets.
 I have tooted 36 toots.
 I have 24 public repositories on GitHub.
 I have contributed 10 sequences to the OEIS.
 I have solved 118 problems on Project Euler.
 I have run 3 / 47 Parkruns in London.
 I have found 64 Geocaches.
My Erdős number is 5.
My Bacon number is ∞.
My Sabbath number is ∞.
My Erdős–Bacon number is ∞.
My Erdős–Bacon–Sabbath number is ∞.
© Matthew Scroggs 2017