Maths on the Back of an Envelope

‘Another terrific book by Rob Eastaway’ SIMON SINGH
‘A delightfully accessible guide to how to play with numbers’ HANNAH FRY

Değerlendirmeler

‘A delightfully accessible guide to how to play with numbers’ – Dr Hannah Fry, author of Hello World and The Mathematics of Love
‘Put aside those calculators and computers, and find a pen and piece of paper! In a collection of riveting tips and examples, Eastaway shows us amazing short-cuts to get rough answers to important questions. I still find it remarkable that 16% of 25 is exactly the same as 25% of 16!’ – Professor Sir David Spiegelhalter, author of The Art of Statistics
‘Another terrific book by Rob Eastaway’ – Simon Singh
‘Packed with fun examples and fresh ideas. I thought I was on top of this subject, but I learned a lot’ – Tim Harford
‘A joyful primer about the lost art of calculating without a calculator’ – Guardian