La magia della matematica

These simple math secrets and tricks will forever change how you look at the world of numbers. Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your friends—and yourself—with incredible calculations you never thought you could master, as renowned “mathemagician” Arthur Benjamin shares his techniques for lightning-quick calculations and amazing number tricks. This book will teach you to do math in your head faster than you ever thought possible, dramatically improve your memory for numbers, and—maybe for the first time—make mathematics fun. Yes, even you can learn to do seemingly complex equations in your head; all you need to learn are a few tricks. You’ll be able to quickly multiply and divide triple digits, compute with fractions, and determine squares, cubes, and roots without blinking an eye. No matter what your age or current math ability, Secrets of Mental Math will allow you to perform fantastic feats of the mind effortlessly. This is the math they never taught you in school. Also available as an eBook These simple math secrets and tricks will forever change how you look at the world of numbers. Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your friends, and yourself, with incredible calculations you never thought you could master, as renowned "mathemagician" Arthur Benjamin shares his techniques for lightning-quick calculations and amazing number tricks. This book will teach you to do math in your head faster than you ever thought possible, dramatically improve your memory for numbers, and, maybe for the first time, make mathematics fun. Yes, even you can learn to do seemingly complex equations in your head; all you need to learn are a few tricks. You'll be able to quickly multiply and divide triple digits, compute with fractions, and determine squares, cubes, and roots without blinking an eye. No matter what your age or current math ability, Secrets of Mental Math will allow you to perform fantastic feats of the mind effortlessly. This is the math they never taught you in school Si dice che i maghi non dovrebbero mai rivelare i loro segreti. Per fortuna, però, il "matemagico" Arthur Benjamin ignora questa regola e ci svela le illusioni e i misteri numerici che da secoli intrigano i matematici. Ma se nella magia il fascino sta nel non sapere dov'è il trucco, in questo libro succede l'opposto: la meraviglia nasce proprio nel momento in cui capiamo i segreti che si celano dietro i numeri. Utilizzando un'ampia e divertente serie di esempi – dalle palline di gelato al triangolo di Tartaglia, dal poker alla serie di Fibonacci – Benjamin celebra la bellezza della matematica e ci mostra l'inaspettata e sorprendente magia di formule, equazioni e trigonometria.[AUTORE]Arthur Benjamin è professore di matematica, divulgatore e uomo di spettacolo, ribattezzato "matemagico" per la sua capacità di risolvere complicatissimi calcoli mentali. È spesso ospite di importanti show televisivi e scrive per il "New York Times", "Scientific American" e "Wired". È co-autore, con Michael Shermer, di "Secrets of Mental Math". Quick tricks : easy (and impressive) calculations A little give and take : mental addition and subtraction Products of a misspent youth : basic multiplication New and improved products : intermediate multiplication Divide and conquer : mental division The art of "guesstimation" Math for the board : pencil-and-paper multiplication A memorable chapter The tough stuff made easy : advanced multiplication Mathematical magic. An accessible guide to mathematical calculation reveals the secrets of rapid mental calculation, memorization, and other feats of the mind, with tips on how to add, subtract, multiply, divide, and work with fractions, squares, and cube roots.