Welcome to Plus magazine!
What is 1-1+1-1+1-1+...? How infinite sums challenge our notion of arithmetic.
How to write down unimaginably large numbers using just a few symbols.
Why maths is an important tool in the fight against Ebola.
Given there's a finite number of notes on a scale, can we still find a brand new melody? Perhaps they've all been written already!
Why do we add fractions the way we do? A very close look at addition reveals the answer — and it also works for negative numbers.