"The authorities said, best leave it... unsolved." - Nigel Tufnel" title=""The authorities said, best leave it... unsolved." - Nigel Tufnel

## Colin

Colin is a Weymouth maths tutor, author of several Maths For Dummies books and A-level maths guides. He started Flying Colours Maths in 2008.
He lives with an espresso pot and nothing to prove.