### 10 of the most mysterious codes and ciphers in history

Whether your sending messages from behind enemy lines or hiding codes in cat memes, ciphers have been used to deliver secret messages for centuries – here are some of the most mind-boggling.

Randomness may not be as systematic and unpredictable as you might assume…

Eugenia Cheng wanders through the wonderful world of infinite mathematics in this extract from her book Beyond Infinity, shortlisted for the 2017 Royal Society Insight Investment Science Book Prize.

From the ancient Greeks to the modern maestros of mathematics, there are plenty of famous mathematicians you’ve heard of, but here are a few you might not have to add to the list.

Consider yourself infinitely wiser after these fascinating facts from Eugenia Cheng’s new book about this most curious of mathematical concepts.

The Gaussian Curve, commonly referred to as the Normal distribution, was utilised by Karl Friedrich Gauss and Abraham De Moire to solve statistical problems.

What could we do if a real-life zombie disease started to spread?

Are you more tired after flying east than west? Scientists may have reduced jet lag to a single mathematical equation.

Isaac Newton and Gottfried Leibniz are the chief contenders for this textbook troubling mathematical tool, but maybe we should be looking further back to find the real answer.

Maths genius discovers formula for the best seat in the house if you’re watching the Euros.

Is this the year to get a new job? Or maybe move house? With our guide, you can use maths to make your own luck and maximise your chances of getting the best result.

The largest known prime number has been discovered. But what does it all mean?

Scientists have used maths to explain why some cats' fur makes them look like they're wearing a tuxedo.

We're not trying to sound mean, but you should pay attention to what your maths teacher tells you at school.

Euler’s identity, the Banach-Tarski paradox and the sum of all numbers up to infinity are all pretty amazing - find out why...

The probability of a coin landing either heads or tails is supposedly 50/50.

*Focus* readers have named Italian polymath Leonardo da Vinci as the brightest mind of all time.