Ian Stewart

  • Dans ce livre, Ian Stewart retrace les efforts de la pensée humaine pour faire des prévisions, à l'aide des mathématiques, sur tout ce qui est incertain. Météorologie ou économie, mécanique quantique, justice, mécanisme cérébral d'une prise de décision, hasard ou nécessité génétique... Stewart explore les nombreuses applications des probabilités et nous fait comprendre que, malgré tous nos efforts, une probabilité raisonnable reste la seule certitude !

  • Malgré leur austérité, les équations ont joué un rôle déterminant dans la création de ce qui fait le monde, de la cartographie au positionnement par satellite, de la musique à la télévision, de la découverte de l'Amérique à l'exploration des lunes de Jupiter. L'auteur propose d'en découvrir 17 avec leur contexte historique et leur utilité

  • Recueil d'anecdotes sur les grandes figures des mathématiques et d'énigmes et curiosités mathématiques comme le dernier théorème de Fermat, le triangle de Penrose, la conjecture de Poincaré, l'hypothèse de Riemann, etc.

  • De quel côté tombe un chat avec une tartine beurrée sur le dos? Qui a inventé le signe égal? Quel bruit fait un mathématicien qui se noie? Comment faire fortune au pub? Quelle est la surface d'un oeuf d'autruche? Qu'est-ce qu'un ours polaire? Comment calculer p en observant les étoiles?
    Au fil d' énigmes scientifiques parfois loufoques - casse-tête traditionnels, étranges anecdotes historiques, points de vue inédits sur les nombres, etc. -, c'est le trésor de toute une vie passée dans les terres méconnues des mathématiques que nous fait découvrir Ian Stewart. Écrit dans un style clair, loin de toute pompe scolaire ou académique, et avec cet humour propre à nos voisins d'outre-Manche, cet ouvrage captive, stimule, surprend, enrichit, dans un désordre savamment orchestré additionnant quelque 174 pépites.

  • Après le long règne d'une science de l'ordre, Ian Stewart nous révèle l'éclosion récente d'une science du désordre. Il remonte à Galilée puis opère un bond de quatre siècles en avant jusqu'à Poincaré, penseur avant l'heure du désordre.
    Réellement présente et communément admise depuis cinquante ans, cette science du chaos a conduit les scientifiques à repenser complètement leurs idées fondamentales sur la marche de l'univers. Des systèmes qui suivent des lois précises peuvent parfois agir de façon aléatoire, inconstante et imprévisible.
    C'est à cet univers étrange que Ian Stewart introduit le lecteur, un univers où les formes mathématiques familières comme le cercle ou l'ellipse engendrent des structures infiniment complexes : les fractals.
    En termes accessibles, Stewart raconte un nouveau monde d'idées, en compagnie d'Einstein, de Poincaré et de quelques autres, et rend compte des progrès accomplis en matière de prédiction et de contrôle des systèmes chaotiques.

  • Ian Stewart explores the astonishing properties of numbers from 1 to10 to zero and infinity, including one figure that, if you wrote it out, would span the universe. He looks at every kind of number you can think of -- real, imaginary, rational, irrational, positive and negative -- along with several you might have thought you couldn't think of. He explains the insights of the ancient mathematicians, shows how numbers have evolved through the ages, and reveals the way numerical theory enables everyday life. Under Professor Stewart's guidance you will discover the mathematics of codes, Sudoku, Rubik's cube, music, primes and pi. You may be surprised to find you live in eleven-dimensional space, that of the twenty-three people on a football pitch two are more likely than not to share the same birthday, and that forty-two is a very interesting number. Professor Stewart's Incredible Numbers will delight everyone who loves numbers -- including those who currently think they don't.

  • There are some mathematical problems whose significance goes beyond ordinary - like Fermat's Last Theorem - they are enigmas which define mathematics. This book explains why these problems exist, why they matter, what drives mathematicians to incredible lengths to solve them and where they stand in context of mathematics and science as a whole.

  • Uncertainty is everywhere. It lurks in every consideration of the future - the weather, the economy, the sex of an unborn child - even quantities we think that we know such as populations or the transit of the planets contain the possibility of error. It's no wonder that, throughout that history, we have attempted to produce rigidly defined areas of uncertainty - we prefer the surprise party to the surprise asteroid. We began our quest to make certain an uncertain world by reading omens in livers, tea leaves, and the stars. However, over the centuries, driven by curiosity, competition, and a desire be better gamblers, pioneering mathematicians and scientists began to reduce wild uncertainties to tame distributions of probability and statistical inferences. But, even as unknown unknowns became known unknowns, our pessimism made us believe that some problems were unsolvable and our intuition misled us. Worse, as we realized how omnipresent and varied uncertainty is, we encountered chaos, quantum mechanics, and the limitations of our predictive power. Bestselling author Professor Ian Stewart explores the history and mathematics of uncertainty. Touching on gambling, probability, statistics, financial and weather forecasts, censuses, medical studies, chaos, quantum physics, and climate, he makes one thing clear: a reasonable probability is the only certainty.

  • WHAT''S THE USE? - THE UNREASONABLE EFFECTIVENESS OF MATHEMATICS Nouv.

    Many people think mathematics is useless. Professor Ian Stewart knows that their wrong. Mathematical sciences (pure and applied mathematics, statistics, and computer science) contributed $37 trillion to the US economy in the first decade of the twenty-first century. In the UK, the 2.8 million people employed in mathematical science occupations contributed £208 billion to the economy in a single year -- that''s 10 per cent of the workforce contributing 16 per cent of the economy. In What''s the Use?, Professor Stewart asks why there is such a vast gulf between public perceptions of mathematics and the reality, and looks for ways of bridging that gap. Mathematics is broader and more advanced than most of us imagine. Most of its uses are hidden from public view. This book aims to clarify all the ways that mathematics contributes to our lives.

  • Examines seventeen groundbreaking equations that have altered the course of human history. This book explores how Pythagoras' Theorem led to GPS and SatNav; how logarithms are applied in architecture; why imaginary numbers were important in the development of the digital camera, and what is really going on with Schrodinger's cat.

  • Comment transformer un cornet de glace en cube ? Quelle est la forme d'une larme ? Ian Stewart propose une nouvelle sélection de 20 explorations mathématiques, du voyage dans le temps au comportement bizarre d'objets familiers... Nous y découvrons entre autres la cadence mathématiques d'une marche de quadrupèdes, la relation entre nombres premiers et sauts de kangourous et, bien évidemment, la meilleure façon de se faire des noeuds au cerveau.

  • Since the dramatic discovery of the mathematical concept of chaos in 1989, the controversy of its contents has settled down. This revised edition of Does God Play Dice? takes a fresh look at its achievements and potential. With a new preface and three completely new chapters, it includes the latest practical applications of chaos theory, such as developing intelligent heart pacemakers. All this provides a fascinating new answer to Einstien's question which provided the title of this book.

  • School maths is not the interesting part. The real fun is elsewhere. Like a magpie, Ian Stewart has collected the most enlightening, entertaining and vexing 'curiosities' of maths over the years...Now, the private collection is displayed in his cabinet.



    There are some hidden gems of logic, geometry and probability - like how to extract a cherry from a cocktail glass (harder than you think), a pop up dodecahedron, the real reason why you can't divide anything by zero and some tips for making money by proving the obvious. Scattered among these are keys to unlocking the mysteries of Fermat's last theorem, the Poincaré Conjecture, chaos theory, and the P/NP problem for which a million dollar prize is on offer. There are beguiling secrets about familiar names like Pythagoras or prime numbers, as well as anecdotes about great mathematicians. Pull out the drawers of the Professor's cabinet and who knows what could happen...

  • Like its wildly popular predecessors Cabinet of Mathematical Curiosities and Hoard of Mathematical Treasures, Professor Stewart's brand-new book is a miscellany of over 150 mathematical curios and conundrums, packed with trademark humour and numerous illustrations.



    In addition to the fascinating formulae and thrilling theorems familiar to Professor Stewart's fans, the Casebook follows the adventures of the not-so-great detective Hemlock Soames and his sidekick Dr John Watsup (immortalised in the phrase 'Watsup, Doc?'). By a remarkable coincidence they live at 222B Baker Street, just across the road from their more illustrious neighbour who, for reasons known only to Dr Watsup, is never mentioned by name. A typical item is 'The Case of the Face-Down Aces', a mathematical magic trick of quite devilish cunning...



    Ranging from one-liners to four-page investigations from the frontiers of mathematical research, the Casebook reveals Professor Stewart at his challenging and entertaining best.

  • Welcome back to Ian Stewart's magical world of mathematics! This is a strange world of never-ending chess games, empires on the moon, furious fireflies, and, of course, disputes over how best to cut a cake. Each quirky tale presents a fascinating mathematical puzzle -- challenging, fun, and also introducing the reader to a significant mathematical problem in an engaging and witty way.

  • From the mathematics of mazes, to cones with a twist, and the amazing sphericon - and how to make one - Ian Stewart is back with more mathematical stories and puzzles that are as quirky as they are fascinating, and each from the cutting edge of the world of mathematics.

    We find out about the mathematics of time travel, explore the shape of teardrops (which are not tear-drop shaped, but something much, much more strange!), dance with dodecahedra, and play the game of Hex, amongst many more strange and delightful mathematical diversions.

  • Welcome to Ian Stewart's strange and magical world of mathematics! In Math Hysteria, Professor Stewart presents us with a wealth of magical puzzles, each one spun around an amazing tale: Counting the Cattle of the Sun; The Great Drain Robbery; and Preposterous Piratical Predicaments; to name but a few. Along the way, we also meet many curious characters: in short, these stories are engaging, challenging, and lots of fun!

  • From the mathematics of mazes, to cones with a twist, and the amazing sphericon - and how to make one - Ian Stewart is back with more mathematical stories and puzzles that are as quirky as they are fascinating, and each from the cutting edge of the world of mathematics.

    We find out about the mathematics of time travel, explore the shape of teardrops (which are not tear-drop shaped, but something much, much more strange!), dance with dodecahedra, and play the game of Hex, amongst many more strange and delightful mathematical diversions.

  • Welcome to Ian Stewart's strange and magical world of mathematics! In Math Hysteria, Professor Stewart presents us with a wealth of magical puzzles, each one spun around an amazing tale: Counting the Cattle of the Sun; The Great Drain Robbery; and Preposterous Piratical Predicaments; to name but a few. Along the way, we also meet many curious characters: in short, these stories are engaging, challenging, and lots of fun!

  • Ian Stewart explores the astonishing properties of numbers from 1 to10 to zero and infinity, including one figure that, if you wrote it out, would span the universe. He looks at every kind of number you can think of - real, imaginary, rational, irrational, positive and negative - along with several you might have thought you couldn't think of. He explains the insights of the ancient mathematicians, shows how numbers have evolved through the ages, and reveals the way numerical theory enables everyday life.



    Under Professor Stewart's guidance you will discover the mathematics of codes, sudoko, Rubik's cube, music, primes and pi. You may be surprised to find you live in eleven-dimensional space, that of the twenty-three people on a football pitch two are more likely than not to share the same birthday, and that forty-two is a very interesting number.



    Professor Stewart's Incredible Numbers will delight everyone who loves numbers - including those who currently think they don't.

  • Anglais Calculating the Cosmos

    Ian Stewart

    Ian Stewart's up-to-the-minute guide to the cosmos moves from the formation of the Earth and its Moon to the planets and asteroids of the solar system and from there out into the galaxy and the universe. He describes the architecture of space and time, dark matter and dark energy, how galaxies form, why stars implode, how everything began, and how it will end. He considers parallel universes, what forms extra-terrestrial life might take, and the likelihood of Earth being hit by an asteroid. Mathematics, Professor Stewart shows, has been the driving force in astronomy and cosmology since the ancient Babylonians. He describes how Kepler's work on planetary orbits led Newton to formulate his theory of gravity, and how two centuries later irregularities in the motion of Mars inspired Einstein's theory of General Relativity. In crystal-clear terms he explains the fundamentals of gravity, spacetime, relativity and quantum theory, and shows how they all relate to each other. Eighty years ago the discovery that the universe is expanding led to the Big Bang theory of its origins. This in turn led cosmologists to posit features such as dark matter and dark energy. But does dark matter exist? Could another scientific revolution be on the way to challenge current scientific orthodoxy? These are among the questions Ian Stewart raises in his quest through the realms of astronomy and cosmology.

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