Plus.Maths.org
Maths in a minute
Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words. From symmetry to Euclid's axioms, and from binary numbers to the prosecutor's fallacy, learn some maths without too much effort.
Maths in a Minute: Group actions 
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.
Maths in a minute: Partition functions 
How many ways can you write a number as the sum of smaller numbers?
Maths in a minute: Stochastic gradient descent 
How does artificial intelligence manage to produce reliable outputs? Stochastic gradient descent has the answer!
Maths in a minute: The SIR model 
Find out the basics of the SIR model, the basis most disease modellers use to understand the spread of a disease through a population.
Maths in half a minute: Exponential growth 
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!
Maths in a minute: Odds ratios 
Is your new face cream associated to getting spots? The odds ratio can help figure it out.
Maths in a minute: Mathematical models 
A basic introduction to the most powerful tools in science and engineering.
Maths in a minute: Algorithms 
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?
Maths in a minute: Exponential growth 
What do we mean when we say that something grows exponentially?
Maths in a minute: Conditional probability 
Find out why the formula we use to work out conditional probabilities is true!