# Maths in a minute

What exactly do we mean when we say group theory is the study of symmetry? Group actions make precise what it means for a group to act by symmetries on an object.

How many ways can you write a number as the sum of smaller numbers?

How does artificial intelligence manage to produce reliable outputs? Stochastic gradient descent has the answer!

Creep up on polynomials with this quick introduction.
Explore the wonderful world where geometry meets algebra.
Find out the basics of the SIR model, the basis most disease modellers use to understand the spread of a disease through a population.
What do we mean when we say that something grows exponentially? Find out in this very easy introduction, suitable for anyone curious to know more!
Is your new face cream associated to getting spots? The odds ratio can help figure it out.
A basic introduction to the most powerful tools in science and engineering.
The word "algorithm" has probably got more usage over the last few years than it has in its entire history. But what exactly is an algorithm?
What do we mean when we say that something grows exponentially?
Find out why the formula we use to work out conditional probabilities is true!