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From Publishers Weekly
Most readers will have at least dim memories from geometry class of the irrational number pi. Theoretical astrophysicist Livio gives pi’s overlooked cousin phi its due with this lively account， the first on the subject written for the layperson. Phi is the golden ratio of antiquity (1.6180339887)， a never-ending number so lauded for its harmonious qualities that in the 16th century it was dubbed the divine proportion. It is related to phenomena as diverse as the petal arrangements of roses， the breeding patterns of rabbits and the shape of our galaxy. Phi is also claimed to have been crucial in the design of the Great Pyramids， the composition of the Mona Lisa and the construction of Stradivarius violins. Livio (The Accelerating Universe) carefully investigates these and other claims and does not hesitate to debunk myths perpetuated by overzealous enthusiasts he calls ?Golden Numberists.? This is an engaging history of mathematics as well， addressing such perennial questions as the geometric basis of aesthetic pleasure and the nature of mathematical objects. Useful diagrams and handsome illustrations of works under discussion are amply provided. Livio is gifted with an accessible， entertaining style: one typical chapter bounds within five pages from an extended discourse on prime numbers to a clever Oscar Wilde quote about beauty to an amusing anecdote about Samuel Beckett and finally to an eminently clear explanation of G?del’s incompleteness theorem. With a guide to the history of ideas as impassioned as Livio， even the math-phobic can experience the shock and pleasure of scientific discovery. This thoroughly enjoyable work vividly demonstrates to the general reader that， as Galileo put it， the universe is， indeed， written in the language of mathematics.
Copyright 2002 Reed Business Information， Inc. --このテキストは、絶版本またはこのタイトルには設定されていない版型に関連付けられています。

Book Description
Throughout history， thinkers from mathematicians to theologians have pondered the mysterious relationship between numbers and the nature of reality. In this fascinating book， Mario Livio tells the tale of a number at the heart of that mystery: phi， or 1.6180339887...This curious mathematical relationship， widely known as ?The Golden Ratio，? was discovered by Euclid more than two thousand years ago because of its crucial role in the construction of the pentagram， to which magical properties had been attributed. Since then it has shown a propensity to appear in the most astonishing variety of places， from mollusk shells， sunflower florets， and rose petals to the shape of the galaxy. Psychological studies have investigated whether the Golden Ratio is the most aesthetically pleasing proportion extant， and it has been asserted that the creators of the Pyramids and the Parthenon employed it. It is believed to feature in works of art from Leonardo da Vinci’s Mona Lisa to Salvador Dali’s The Sacrament of the Last Supper， and poets and composers have used it in their works. It has even been found to be connected to the behavior of the stock market!
The Golden Ratio is a captivating journey through art and architecture， botany and biology， physics and mathematics. It tells the human story of numerous phi-fixated individuals， including the followers of Pythagoras who believed that this proportion revealed the hand of God; astronomer Johannes Kepler， who saw phi as the greatest treasure of geometry; such Renaissance thinkers as mathematician Leonardo Fibonacci of Pisa; and such masters of the modern world as Goethe， Cezanne， Bartok， and physicist Roger Penrose. Wherever his quest for the meaning of phi takes him， Mario Livio reveals the world as a place where order， beauty， and eternal mystery will always coexist.
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