Engelska

First-order Logic [Bok / Häftad]

<p>What makes a bridge wobble when it&apos;s not meant to? How do billions of dollars mysteriously vanish into thin air? How does a building rock when its resonant frequency matches a gym class leaping to Snap&apos;s 1990 hit I&apos;ve Got The Power? The answer is maths. Or, to be precise, what happens when maths goes wrong in the real world. As Matt Parker shows us, our modern lives are built on maths: computer programmes, finance, engineering. And most of the time this maths works quietly behind the scenes, until ... it doesn&apos;t. Exploring and explaining a litany of glitches, near-misses and mishaps involving the internet, big data, elections, street signs, lotteries, the Roman empire and a hapless Olympic shooting team, Matt Parker shows us the bizarre ways maths trips us up, and what this reveals about its essential place in our world. This book shows how, by making maths our friend, we can learn from its pitfalls. It also contains puzzles, challenges, geometric socks, jokes about binary code and three deliberate mistakes. Getting it wrong has never been more fun.</p>

<p>'Her stories have the power to transform your life' Lori Gottlieb, bestselling author of Maybe You Should Talk to Someone 'Radically changes the way we think about mental illness, pleasure, pain, reward and stress' Daniel Levitin, bestselling author of The Organized Mind 'Brilliant . . . riveting, scary, cogent and cleverly argued' Beth Macy, author of Dopesick We are a wired generation.</p><p>In these fast-paced times we are constantly bombarded by high-reward, high-dopamine stimuli. From texting to social media, food to drugs, gambling to shopping, we have become addicted to fleeting and distracting pleasures that are making us sick. In Dopamine Nation, psychiatrist and bestselling author Dr Anna Lembke reveals why our relentless pursuit of pleasure leads to pain and what we can do about it.</p><p>Bringing together cutting-edge neuroscience with the gripping real life experiences from her clinical practice, Lembke explores how contentment and connectedness are essential tools in keeping dopamine in check. This is an essential book for anyone wanting to find a balance for a happier life.</p>

<p>Factfulness meets How to Be Right in this major new book from globally bestselling economist Tim Harford'Tim Harford is our most likeable champion of reason and rigour... clear, clever and always highly readable' Times Books of the Year 'If you aren't in love with stats before reading this book, you will be by the time you're done. Powerful, persuasive, and in these truth-defying times, indispensable'Caroline Criado Perez, author of Invisible Women'Nobody makes the statistics of everyday life more fascinating and enjoyable than Tim Harford'Bill Bryson'Fabulously readable, lucid, witty and authoritative . . . </p><p>Every politician and journalist should be made to read this book, but everyone else will get so much pleasure and draw so much strength from the joyful way it dispels the clouds of deceit and delusion' Stephen Fry'Wise, humane and, above all, illuminating. Nobody is better on statistics and numbers - and how to make sense of them'Matthew Syed"One of the most wonderful collections of stories that I have read in a long time... fascinating."Stephen Levitt, co-author of FreakonomicsTHE SUNDAY TIMES BUSINESS BESTSELLERWhen was the last time you read a grand statement, accompanied by a large number, and wondered whether it could really be true? Statistics are vital in helping us tell stories - we see them in the papers, on social media, and we hear them used in everyday conversation - and yet we doubt them more than ever. But numbers - in the right hands - have the power to change the world for the better. </p><p>Contrary to popular belief, good statistics are not a trick, although they are a kind of magic. Good statistics are not smoke and mirrors; in fact, they help us see more clearly. Good statistics are like a telescope for an astronomer, a microscope for a bacteriologist, or an X-ray for a radiologist. If we are willing to let them, good statistics help us see things about the world around us and about ourselves - both large and small - that we would not be able to see in any other way. In How to Make the World Add Up, Tim Harford draws on his experience as both an economist and presenter of the BBC's radio show 'More or Less'. He takes us deep into the world of disinformation and obfuscation, bad research and misplaced motivation to find those priceless jewels of data and analysis that make communicating with numbers worthwhile. Harford's characters range from the art forger who conned the Nazis to the stripper who fell in love with the most powerful congressman in Washington, to famous data detectives such as John Maynard Keynes, Daniel Kahneman and Florence Nightingale. </p><p>He reveals how we can evaluate the claims that surround us with confidence, curiosity and a healthy level of scepticism. Using ten simple rules for understanding numbers - plus one golden rule - this extraordinarily insightful book shows how if we keep our wits about us, thinking carefully about the way numbers are sourced and presented, we can look around us and see with crystal clarity how the world adds up.</p>

<p>An instant New York Times Bestseller! "Unreasonably entertaining....reveals how geometric thinking can allow for everything from fairer American elections to better pandemic planning." - The New York Times   </p><p>From the New York Times-bestselling author of How Not to Be Wrong-himself a world-class geometer-a far-ranging exploration of the power of geometry, which turns out to help us think better about practically everything. </p><p>How should a democracy choose its representatives? How can you stop a pandemic from sweeping the world? How do computers learn to play Go, and why is learning Go so much easier for them than learning to read a sentence? Can ancient Greek proportions predict the stock market? (Sorry, no.) What should your kids learn in school if they really want to learn to think? All these are questions about geometry. For real. If you're like most people, geometry is a sterile and dimly remembered exercise you gladly left behind in the dust of ninth grade, along with your braces and active romantic interest in pop singers.</p><p>If you recall any of it, it's plodding through a series of miniscule steps only to prove some fact about triangles that was obvious to you in the first place. That's not geometry. Okay, it is geometry, but only a tiny part, which has as much to do with geometry in all its flush modern richness as conjugating a verb has to do with a great novel. </p><p>Shape reveals the geometry underneath some of the most important scientific, political, and philosophical problems we face. Geometry asks: Where are things? Which things are near each other? How can you get from one thing to another thing? Those are important questions. The word "geometry"comes from the Greek for "measuring the world." If anything, that's an undersell. Geometry doesn't just measure the world-it explains it. Shape shows us how.</p>

How Numbers Work [Bok / Pocket]

Which mathematician elaborated a crucial concept the night before he died in a duel? Who funded his maths and medical career through gambling and chess? Who learned maths from her wallpaper? Ian Stewart presents the extraordinary lives and amazing discoveries of twenty-five of history's greatest mathematicians from Archimedes and Liu Hui to Benoit Mandelbrot and William Thurston. His subjects are the inspiring individuals from all over the world who have made crucial contributions to mathematics. They include the rediscovered geniuses Srinivasa Ramanujan and Emmy Noether, alongside the towering figures of Muhammad al-Khwarizmi (inventor of the algorithm), Pierre de Fermat, Isaac Newton, Carl Friedrich Gauss, Nikolai Ivanovich Lobachevsky, Bernhard Reimann (precursor to Einstein), Henri Poincare, Ada Lovelace (arguably the first computer programmer), Kurt Goedel and Alan Turing. Ian Stewart's vivid accounts are fascinating in themselves and, taken together, cohere into a riveting history of key steps in the development of mathematics.