# Nonplussed!: Mathematical Proof of Implausible Ideas

Princeton University Press, 2007 - 196 oldal

Math--the application of reasonable logic to reasonable assumptions--usually produces reasonable results. But sometimes math generates astonishing paradoxes--conclusions that seem completely unreasonable or just plain impossible but that are nevertheless demonstrably true. Did you know that a losing sports team can become a winning one by adding worse players than its opponents? Or that the thirteenth of the month is more likely to be a Friday than any other day? Or that cones can roll unaided uphill? In Nonplussed!--a delightfully eclectic collection of paradoxes from many different areas of math--popular-math writer Julian Havil reveals the math that shows the truth of these and many other unbelievable ideas.

Nonplussed! pays special attention to problems from probability and statistics, areas where intuition can easily be wrong. These problems include the vagaries of tennis scoring, what can be deduced from tossing a needle, and disadvantageous games that form winning combinations. Other chapters address everything from the historically important Torricelli's Trumpet to the mind-warping implications of objects that live on high dimensions. Readers learn about the colorful history and people associated with many of these problems in addition to their mathematical proofs.

Nonplussed! will appeal to anyone with a calculus background who enjoys popular math books or puzzles.

### Mit mondanak mások -Írjon ismertetőt

#### Review: Nonplussed!: Mathematical Proof of Implausible Ideas

Felhasználói ismertető  - Brandon - Goodreads

How'd this book get an average rating of 11 on a 5-star scale? Having mathematicians like your book probably helps with improbable things like that. Teljes értékelés elolvasása

#### Review: Nonplussed!: Mathematical Proof of Implausible Ideas

How'd this book get an average rating of 11 on a 5-star scale? Having mathematicians like your book probably helps with improbable things like that. Teljes értékelés elolvasása

### Tartalomjegyzék

 Three Tennis Paradoxes 4 The Uphill Roller 16 The Birthday Paradox 25 The Spin of a Table 37 Derangements 46 Conways Chequerboard Army 62 The Toss of a Needle 68 Torricellis Trumpet 82
 Parrondos Games 115 Hyperdimensions 127 Friday the 13th 151 Fractran 162 THE MOTIFS 180 The InclusionExclusion Principle 187 The Binomial Inversion Formula 189 Surface Area and Arc Length 193

 Nontransitive Effects 92 A Pursuit Problem 105

### Népszerű szakaszok

1. oldal - I daresay you haven't had much practice," said the Queen. "When I was your age I always did it for half an hour a day. Why, sometimes I've believed as many as six impossible things before breakfast.
vii. oldal - Do I contradict myself? Very well then I contradict myself, (I am large, I contain multitudes.) I concentrate toward them that are nigh, I wait on the doorslab.
xi. oldal - He that hawks at larks and sparrows has no less sport, though a much less considerable quarry, than he that flies at nobler game: and he is little acquainted with the subject of this treatise— the UNDERSTANDING— who does not know that, as it is the most elevated faculty of the soul, so it is employed with a greater and more constant delight than any of the other.
xi. oldal - Mistake not this for a commendation of my work; nor conclude, because I was pleased with the doing of it, that therefore I am fondly taken with it now it is done. He that hawks at larks and sparrows, has no less sport, though a much less considerable quarry, than he that flies at nobler game: and he is little acquainted with the subject of this treatise, the Understanding, who does not know, that as it is the most 'elevated faculty of the soul, so it is employed with a greater and mere constant delight...
vii. oldal - Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost. — WS ANGLIN, "Mathematics and History" 00 An old couple like that, the man thought, acting like kids.

### A szerzőről (2007)

Julian Havil is the author of "Gamma: Exploring Euler's Constant, Nonplussed!: Mathematical Proof of Implausible Ideas, and Impossible?: Surprising Solutions to Counterintuitive Conundrums" (all Princeton). He is a retired former master at Winchester College, England, where he taught mathematics for more than three decades.