Populærvidenskab: matematik

Findes der en teori for alting?Og kan man bruge hele sit liv på at lede efter den?Dette er nogle af de spørgsmål, den danske fysiker Jesper M. Grimstrup stiller i Shell Beach – en bog om kvantegravitation, white water kayaking og et liv med videnskab. Det er fortællingen om konferencer og tilrøgede kontorer, om jagten på den endelige teori og om at blaffe illegalt gennem Tibet. På mange måder er Shell Beach en personlig bog. En bog af en banebrydende teoretisk fysiker om hans rejse gennem den akademiske verden, hans kamp for sine egne idéer og en ny metode til at gennemføre forskning i matematisk fysik.

Vittig samfundssaire fra 1880. Mange emner behandles, de er stadig aktuelle: Kvindeundertrykkelse, det klassedelte samfund, og matematik: En eller flere dimensioner. Hvordan erkendes de? Findes det fire-dimensionale rum?Velegnet til baggrund for opgaver i samfundslære, historie og matematik på gymnasieniveau.Har ikke været udgivet på dansk før, men på mange andre sprog.

Insane Number Hacks For Curious Adults And Daring Students!In this epic book, you'll uncover 50 unbelievable ways you can manipulate numbers to solve equations, word problems and brain teasers in a flash, no calculator required. Math wizard Tanya Zakowich uses colorful diagrams and quirky explanations to help you see math as a creative tool you can use to quickly solve problems without confusion. Whether you want to divide huge numbers in your head, instantly know the square root of 5,489 or mentally calculate how much you'll spend on a Spotify subscription this year, you'll be able to get your answer in a matter of seconds. These mind-blowing tricks will teach you that numbers aren't just magical, they are an awesome resource for hacking the world around you!

Flot plakat ca. 70 x 100 cm

NAMED A MOST-ANTICIPATED BOOK OF 2024 BY FT, The Guardian, and The Sunday TimesFrom the New York Times bestselling author of The Signal and the Noise, the definitive guide to our era of risk—and the players raising the stakes   In the bestselling The Signal and the Noise, Nate Silver showed how forecasting would define the age of Big Data. Now, in this timely and riveting new book, Silver investigates “the River,” the community of like-minded people whose mastery of risk allows them to shape—and dominate—so much of modern life. These professional risk-takers—poker players and hedge fund managers, crypto true believers and blue-chip art collectors—can teach us much about navigating the uncertainty of the twenty-first century. By immersing himself in the worlds of Doyle Brunson, Peter Thiel, Sam Bankman-Fried, Sam Altman, and many others, Silver offers insight into a range of issues that affect us all, from the frontiers of finance to the future of AI. Most of us don’t have traits commonly found in the River: high tolerance for risk, appreciation of uncertainty, affinity for numbers—paired with an instinctive distrust of conventional wisdom and a competitive drive so intense it can border on irrational. For those in the River, complexity is baked in, and the work is how to navigate it. People in the River have increasing amounts of wealth and power in our society, and understanding their mindset—and the flaws in their thinking— is key to understanding what drives technology and the global economy today. Taking us behind the scenes from casinos to venture capital firms, and from the FTX inner sanctum to meetings of the effective altruism movement, On the Edge is a deeply reported, all-access journey into a hidden world of power bro­kers and risk-takers.

Machine-learning systems are making life-altering decisions for us: approving mortgage loans, determining whether a tumour is cancerous, or deciding whether someone gets bail. They now influence discoveries in chemistry, biology and physics - the study of genomes, extra-solar planets, even the intricacies of quantum systems.We are living through a revolution in artificial intelligence that is not slowing down. This major shift is based on simple mathematics, some of which goes back centuries: linear algebra and calculus, the stuff of eighteenth-century mathematics. Indeed by the mid-1850s, a lot of the groundwork was all done. It took the development of computer science and the kindling of 1990s computer chips designed for video games to ignite the explosion of AI that we see all around us today. In this enlightening book, Anil Ananthaswamy explains the fundamental maths behind AI, which suggests that the basics of natural and artificial intelligence might follow the same mathematical rules.As Ananthaswamy resonantly concludes, to make the most of our most wondrous technologies we need to understand their profound limitations - the clues lie in the maths that makes AI possible.

In China, many excellent students in mathematics take an active part in various mathematical contests, and each year, the best six senior high school students are selected to form the IMO National Team to compete in the International Mathematical Olympiad. In the past ten years, China's IMO Team has achieved outstanding results - they won first place almost every year.The authors of this book are coaches of the China national team. They are Xiong Bin, Xiao Liang, Yu Hongbing, Yao Yijun, Qu Zhenhua, Li Ting, Ai Yinhua, Wang Bin, Fu Yunhao, He Yijie, Zhang Sihui, Wang Xinmao, Lin Tianqi, Xu Disheng, et al. Those who took part in the translation work are Chen Haoran and Zhao Wei.The materials of this book come from a series of two books (in Chinese) on Forward to IMO: a collection of mathematical Olympiad problems (2021-2022). It is a collection of problems and solutions of the major mathematical competitions in China. It provides a glimpse of how the China national team is selected and formed.

In China, many excellent students in mathematics take an active part in various mathematical contests, and each year, the best six senior high school students are selected to form the IMO National Team to compete in the International Mathematical Olympiad. In the past ten years, China's IMO Team has achieved outstanding results - they won first place almost every year.The authors of this book are coaches of the China national team. They are Xiong Bin, Xiao Liang, Yu Hongbing, Yao Yijun, Qu Zhenhua, Li Ting, Ai Yinhua, Wang Bin, Fu Yunhao, He Yijie, Zhang Sihui, Wang Xinmao, Lin Tianqi, Xu Disheng, et al. Those who took part in the translation work are Chen Haoran and Zhao Wei.The materials of this book come from a series of two books (in Chinese) on Forward to IMO: a collection of mathematical Olympiad problems (2021-2022). It is a collection of problems and solutions of the major mathematical competitions in China. It provides a glimpse of how the China national team is selected and formed.

Explore the life-changing magic of trigonometry with Matt Parker, stand-up mathematician and no. 1 bestselling author of Humble PiWhy can no two people ever see the same rainbow? What happens when you pull a pop song apart into pure sine waves and play it back on a piano? Why does the wake behind a duck always form an angle of exactly 39 degrees? And what did mathematicians have to do with the great pig stampede of 2012? The answer to each of these questions can be found in the triangle.In Love Triangle, stand-up comedian, ex-maths teacher and Sunday Times number one bestselling author Matt Parker is on a mission to prove why we should all show a lot more love for triangles, along with the useful trigonometry and geometry they enable. To make his point, he uses triangles to create his own digital avatar, survive a harrowing motorcycle ride, cut a sandwich into three equal parts, and measure tall buildings while wearing silly shoes. But soon these hare-brained experiments begin to reveal a genuinely important truth: triangles are the hidden pattern beneath the surface of the contemporary world, used in everything from GPS to CGI via Spotify streaming, the play button and your best mate's triangle tattoo.Join Matt Parker as he demonstrates why there's more to triangles than Pythagoras and SOHCAHTOA. Triangles are everything and everything is triangles.

Ingenious geometric models from Japan's leading designer of polyhedral origami! Origami Polyhedra for Beginners puts a new spin on the ancient art of paper folding, opening the door to a world filled with beautiful geometric shapes. In this book, Miyuki Kawamura, a master of polyhedral origami, shows you how to create 55 different models using squares of brightly-colored paper. Modular origami models are created using multiple sheets of paper that are folded and then locked together without the use of glue or tape. Clear step-by-step instructions for each model are provided. These amazing creations will captivate everyone who sees them! The models in this book are surprisingly easy to make, and include: Building Blocks and Tiles which can be stacked and combinedStriking Pyramids, Cubes, Stars and SpheresDramatic polyhedral "Wireframes" and "Skeletons" with open latticeworkStar-shaped Icosahedrons that look like they belong on a Christmas treePlayful Windmills, Water Wheels and many other Polyhedral "Kits"! The sense of accomplishment and delight you will experience from completing these models is well worth the time and effort!

Las matemáticas no solo son relevantes para nuestras vidas, sino que sin ellas el mundo moderno como lo conocemos se desmoronaría.Ante la percepción popular de que las matemáticas son inútiles para nuestro día a día, el profesor Ian Stewart nos demuestra que esta disciplina va mucho más allá de los cálculos aburridos que todos recordamos de la escuela y nos propone un curioso recorrido por los usos de las matemáticas que a menudo permanecen ocultos a simple vista, pero contribuyen a nuestras vidas. Desde la trigonometría que mantiene un satélite en órbita hasta los números primos utilizados por los sistemas de seguridad más avanzados del mundo, pasando por los números imaginarios que permiten la realidad aumentada, los métodos más eficientes para los trasplantes de riñón, las aplicaciones en política, la predicción del cambio climático o, incluso, cómo una curva extraña e infinitamente ondulada optimiza las entregas a domicilio; las matemáticas no solo son relevantes para nuestras vidas, sino que sin ellas el mundo moderno como lo conocemos se desmoronaría.

Sharpen your mind and flex your mental muscles with this light and witty collection of 113 brainteasers! The dynamic compilation features the Four Famous Problems, including Archimedes' Cattle Problem, Impossible Division, and Apple and Unit Problems. Additional brainteasers cover a variety of mathematical topics, from distance and measurements to money, speed, time, and more. Problems are primarily solved using the mathematics of daily life--addition, subtraction, multiplication, division, and fractions--plus algebra and clear, logical thinking. Most have solutions; some have more than one, while others are left to the skills of the reader. A captivating experience for puzzle aficionados.

Combining personal experience with insightful analyses of everyday conundrums and life choices - from how to bicker less with our partners to the best way to pitch to an unreceptive audience - Sumpter shows there are four ways of thinking to approach our problems: statistical, interactive, chaotic and complex.

Spændende projekter for matematikglade børn og ungeDenne bog indeholder 27 meget forskellige matematikaktiviteter. Lige fra produktion af køleskabsmagneter med tal og fremstilling af kuglerammer til de yngste til Fibonacci-spiral, optisk bidrag og sandsynlighedsregning for de unge.Aktiviteterne præsenteres i en blanding af ord og forklarende billeder, som guider gennem aktiviteterne.Indledningsvis præsenteres aktiviteten med angivelse af sværhedsgrad, tid, samt nødvendige materialer og redskaber, hvorefter aktiviteten gennemgås trinvis.For matematikglade børn og unge mellem 5 og 13 år samt deres forældre.Det er 27 meget varierede matematik-aktiviteter, som danner grobund for masser af spændende matematik, lærerig leg og hyggeligt samvær derhjemme med en voksen eller i klasseværelset. Aktiviteterne er nemme at give sig i kast med og vil være populære blandt børn.Store anbefalinger til både folke- og lærerbiblioteker.LEKTØRUDTALELSEN