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Quick(er) Calculations: How to add, subtract, multiply, divide, square, and square root more swiftly de Trevor Davis Lipscombe

Quick(er) Calculations: How to add, subtract, multiply, divide, square, and square root more swiftly

Autor Trevor Davis Lipscombe
en Limba Engleză Hardback – 6 mai 2021
Finalist of the 2022 PROSE AwardsHow fast can you calculate? Would you like to be faster? This book presents the time honored tricks and tips of calculation, from a fresh perspective, to boost the speed at which you can add — whether a couple of numbers, or columns so long an accountant may faint. Find out how to subtract, multiply, divide, and find square roots more quickly.What's more, this book gives suggestions for how to find answers that are "good enough" for tricky tasks like dividing by 17. It includes brand new ways to multiply and divide irrational numbers such as pi, e, the square root of 2, and the golden ratio. It has sections devoted to ancient mathematics, and the techniques we can borrow from previous and other cultures, in order to calculate more quickly. Examples, some serious, some fun, come from everyday life or from history — like hot dog eating competitions, the Vatican's cricket team, the molecular weight of the molecule with the world's longest name, and the amount of people taken by Henry VIII to arguably history's biggest party, the Field of the Cloth of Gold. In an age of timed multiple-choice questions, the swifter you can sum, or rule out wrong answers, the better you will do. If you love to play with numbers, this book will be recreational reading. And if you ever wonder whether simple arithmetic problems can crop up in everyday life, this book provides a fresh perspective.
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Specificații

ISBN-13: 9780198852650
ISBN-10: 0198852657
Pagini: 192
Ilustrații: 4 grayscale line figures
Dimensiuni: 142 x 223 x 15 mm
Greutate: 0.39 kg
Ediția:1
Editura: OUP OXFORD
Colecția OUP Oxford
Locul publicării:Oxford, United Kingdom

Recenzii

If you think mental arithmetic is out of date in the 21st century, think again. This engaging book is about insight and interestingness beyond the simple utility of quicker calculations. The general style is original and characterful, and makes the book distinctive.
This book is about very elementary concepts that ought to be read by sophisticated people who appreciate that elementary does not mean trivial. The author's erudite scholarship shines in the prose, along with just the right level of dry wit. It's serious stuff he's writing about (without numbers and arithmetic, our modern world simply vanishes into the ancient past where numbers were limited to none, one, and many), but in such a way that the reader does not slowly nod-off into a coma.
Lipscombe's book is unusual, being, as it is, an expansive view of a small subject. The text he presents here is excellent, and is a model of everything a writer strives for: concision, simplicity, directness, accuracy, and surprise.

Notă biografică

Trevor Lipscombe graduated with an undergraduate degree in theoretical physics from Queen Mary College, University of London, and then obtained a doctorate in theoretical physics from the University of Oxford. He is the author, with Alice Calaprice, of “Albert Einstein: A Biography,” and sole author of “The Physics of Rugby,” which was selected as one of the best ten physics books of 2009. He edited the critical edition of Saint John Henry Newman's novel “Loss and Gain.” Trevor was a postdoctoral researcher at the Levich Institute at the City College of New York, but has also worked in a homeless shelter, a physics journal, and three university presses. He remains fond of finding ways to present science-related materials simply.