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As COP28, the 2023 United Nations Climate Change Conference, kicks off we look at how maths can help understand the climate crisis.

How do you create dramatic film out of mathematics? We find out with writer and director Timothy Lanzone.

Mathematics plays a central role in understanding how infectious diseases spread. This collection of articles looks at some basic concepts in epidemiology to help you understand this fascinating and important field, and set you up for further study.

Find out why the formula we use to work out conditional probabilities is true!

- We talk about a play that explores the fascinating mathematical collaboration between the mathematicians GH Hardy and Srinivasa Ramanujan.

If it was repaid at the *end* of the year in one lump sum, it is my understanding that would be 5%. If they give you 2000 at 5% and you pay them back at the end of the year 2100, that is 5%. You had use of the money the entire year. BUT because you are repaying monthly, you are paying them back both interest and principal. So in month one you've borrowed 2000 for the year. But in month two, you don't owe them 2000 any more, right? You already paid some of it back - which they can now lend to someone else. (they have use of the money). But if you've paid them some of the principle back, you don't "owe" interest on that part anymore because you aren't borrowing that portion of it anymore. But if you aren't borrowing that part anymore, why the heck are they charging you 5% on that part still? They have it back. However, they continue to charge you interest on money you've already put back in their pocket and turn around and do the same thing to someone else! Or something along those lines.