## News from the world of Maths

Imagine a world without computer errors. Tony Hoare, inventor of the famous Quicksort algorithm, is working on making it possible.

What has mathematics made possible? Tell the world and win prizes!

Where have the COVID-19 vaccines got us so far and where we are likely to be when the rollout is complete?

It's with great sadness that we learnt about the death of John Haigh last week. As a small tribute to Haigh here is a collection of articles he wrote or co-wrote for *Plus*.

You are faced with a difficult problem, it is not easily solved. How do you feel? Well, if you are Avi Wigderson, one of the winners of the 2021 Abel Prize, you are very happy!

László Lovász has won one half of the Abel Prize 2021 for fundamental contributions to theoretical computer science and discrete maths.

From rabbits, to beauty, to myths and more – we celebrate Pi Day with the shiniest and most irrational of numbers!

From the mathematics of shuffling to tackling the COVID-19 pandemic, we've really enjoyed speaking to all of these female mathematicians about their work over the last year.