Pi
What a lovely coincidence! Pi day (the 14th of March, written 3/14 in the US) is also Albert Einstein's birthday. How are you going to celebrate? . 
Today is Pi day  it's March 14th, written as 3/14 in the US  and to celebrate we bring you some of our favourite Pi articles: 
In the movies mathematicians are mostly mad. Since here at Plus we firmly believe in our sanity, we're puzzled as to why. So we charged Charlotte Mulcare with the unenviable task of sifting through five wellknown maths movies and speculate towards an answer.

Liz Newton finds that having a small brain doesn't stop you doing great things.

You might know the famous formula for an area of a circle, but why does this formula work? Tom Körner's explanation really is a piece of cake, served up with a hefty estimate of pi.

Why do so many people say they hate mathematics, asks David Acheson? The truth, he says, is that most of them have never been anywhere near it, and that mathematicians could do more to change this perception  perhaps by emphasising the element of surprise that so often accompanies mathematics at its best.

Memory is fundamental to the way we think, and we use it in almost every activity. But most of us cannot imagine approaching the level of world record holder Hiroyuki Goto, who memorised and recited 42,195 digits of pi! Rob Eastaway asks if mere mortals can learn anything useful from such incredible feats of memory, and gives some hints on how to remember numbers.


Nineteenthcentury German mathematician Leopold Kronecker once said God created the integers, all the rest is the work of man. 