Amusements in Mathematics


Henry Ernest Dudeney - 1917
    Intriguing, witty, paradoxical productions of one of the world's foremost creators of puzzles.This book was converted from its physical edition to the digital format by a community of volunteers. You may find it for free on the web. Purchase of the Kindle edition includes wireless delivery.

The Art of Statistics: How to Learn from Data


David Spiegelhalter - 2019
      Statistics are everywhere, as integral to science as they are to business, and in the popular media hundreds of times a day. In this age of big data, a basic grasp of statistical literacy is more important than ever if we want to separate the fact from the fiction, the ostentatious embellishments from the raw evidence -- and even more so if we hope to participate in the future, rather than being simple bystanders. In The Art of Statistics, world-renowned statistician David Spiegelhalter shows readers how to derive knowledge from raw data by focusing on the concepts and connections behind the math. Drawing on real world examples to introduce complex issues, he shows us how statistics can help us determine the luckiest passenger on the Titanic, whether a notorious serial killer could have been caught earlier, and if screening for ovarian cancer is beneficial. The Art of Statistics not only shows us how mathematicians have used statistical science to solve these problems -- it teaches us how we too can think like statisticians. We learn how to clarify our questions, assumptions, and expectations when approaching a problem, and -- perhaps even more importantly -- we learn how to responsibly interpret the answers we receive. Combining the incomparable insight of an expert with the playful enthusiasm of an aficionado, The Art of Statistics is the definitive guide to stats that every modern person needs.

The Maths Book: Big Ideas Simply Explained


D.K. Publishing - 2019
    Take a journey through the fascinating story of fractions, numbers, patterns, and shapes in order to better understand the complex world we live in.Continuing the "Big Ideas" series' trademark combination of authoritative, clear text and bold graphics to chart the development of maths through history, the book explores and explains some of the most complex and fascinating mathematical subjects. Delve into everything from the mathematical ideas and inventions of the ancient world such as the first number systems, magic squares, and the Chinese abacus, through to the developments in mathematics during medieval and Renaissance Europe, to the rise of group theory and cryptography more recently.This diverse and inclusive account of mathematics will have something for everybody: for those interested in the maths behind world economies, secret spies, modern technology and plenty more, taking readers around the world from Babylon to Bletchley Park. Tracing maths through the Scientific Revolution to its 21st-century use in computers, the internet, and AI, The Maths Book uses an innovative visual approach to make the subject accessible to everyone, casual readers and students alike.

The Art of Problem Solving, Volume 1: The Basics


Sandor Lehoczky - 2006
    The Art of Problem Solving, Volume 1, is the classic problem solving textbook used by many successful MATHCOUNTS programs, and have been an important building block for students who, like the authors, performed well enough on the American Mathematics Contest series to qualify for the Math Olympiad Summer Program which trains students for the United States International Math Olympiad team.Volume 1 is appropriate for students just beginning in math contests. MATHCOUNTS and novice high school students particularly have found it invaluable. Although the Art of Problem Solving is widely used by students preparing for mathematics competitions, the book is not just a collection of tricks. The emphasis on learning and understanding methods rather than memorizing formulas enables students to solve large classes of problems beyond those presented in the book.Speaking of problems, the Art of Problem Solving, Volume 1, contains over 500 examples and exercises culled from such contests as MATHCOUNTS, the Mandelbrot Competition, the AMC tests, and ARML. Full solutions (not just answers!) are available for all the problems in the solution manual.

Mental Math: Tricks To Become A Human Calculator


Abhishek V.R. - 2017
    Just read this till the end You don’t have to buy this book. Just read this till end & you will learn something that will change the way you do math forever. Warning: I am revealing this secret only to the first set of readers who will buy this book & plan to put this secret back inside the book once I have enough sales. So read this until the very end while you still can.School taught you the wrong way to do mathThe way you were taught to do math, uses a lot of working memory. Working memory is the short term memory used to complete a mental task. You struggle because trying to do mental math the way you were taught in school, overloads your working memory. Let me show you what I mean with an example:Try to multiply the 73201 x 3. To do this you multiply the following:1 x 3 =0 x 3 =2 x 3 =3 x 3 =7 x 3 =This wasn’t hard, & it might have taken you just seconds to multiply the individual numbers. However, to get the final answer, you need to remember every single digit you calculated to put them back together. It takes effort to get the answer because you spend time trying to recall the numbers you already calculated. Math would be easier to do in your head if you didn’t have to remember so many numbers. Imagine when you tried to multiply 73201 x 3, if you could have come up with the answer, in the time it took you to multiply the individual numbers. Wouldn’t you have solved the problem faster than the time it would have taken you to punch in the numbers inside a calculator? Do the opposite of what you were taught in schoolThe secret of doing mental math is to calculate from left to right instead of from right to left. This is the opposite of what you were taught in school. This works so well because it frees your working memory almost completely. It is called the LR Method where LR stands for Left to Right.Lets try to do the earlier example where we multiplied 73201 x 3. This time multiply from left to right, so we get:7 x 3 = 213 x 3 = 93 x 2 = 60 x 3 = 03 x 1 = 3Notice that you started to call out the answer before you even finished the whole multiplication problem. You don’t have to remember a thing to recall & use later. So you end up doing math a lot faster. The Smart ChoiceYou could use what you learnt & apply it to solve math in the future. This might not be easy, because we just scratched the surface. I've already done the work for you. Why try to reinvent the wheel, when there is already a proven & tested system you can immediately apply. This book was first available in video format & has helped 10,000+ students from 132 countries. It is available at ofpad.com/mathcourse to enroll. This book was written to reach students who consume the information in text format. You can use the simple techniques in this book to do math faster than a calculator effortlessly in your head, even if you have no aptitude for math to begin with.Imagine waking up tomorrow being able to do lightning fast math in your head. Your family & friends will look at you like you are some kind of a genius. Since calculations are done in your head, you will acquire better mental habits in the process. So you will not just look like a genius. You will actually be one. Limited Time BonusWeekly training delivered through email for $97 is available for free as a bonus at the end of this book for the first set of readers. Once we have enough readers, this bonus will be charged $97. Why Price Is So LowThis book is priced at a ridiculous discount only to get our first set of readers. When we have enough readers the price will go up.

Stalking the Riemann Hypothesis: The Quest to Find the Hidden Law of Prime Numbers


Dan Rockmore - 2005
    Now, at a moment when mathematicians are finally moving in on a proof, Dartmouth professor Dan Rockmore tells the riveting history of the hunt for a solution.In 1859 German professor Bernhard Riemann postulated a law capable of describing with an amazing degree of accuracy the occurrence of the prime numbers. Rockmore takes us all the way from Euclid to the mysteries of quantum chaos to show how the Riemann hypothesis lies at the very heart of some of the most cutting-edge research going on today in physics and mathematics.

The Golden Ratio: The Story of Phi, the World's Most Astonishing Number


Mario Livio - 2002
    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.From the Hardcover edition.

The DASH Diet for Beginners Essentials to Get Started


John Chatham - 2013
    Based on research by the National Institutes of Health, and chosen by U.S. News & World Report as its number-one choice in Best Diets Overall, Best Diets for Healthy Eating, and Best Diabetes Diets, the DASH diet rises above the noise of the gimmicky weight-loss plans.Created as a way for people with high blood pressure to enjoy the foods they love while working to reduce or correct their hypertension, the DASH diet uses healthful food choices, along with more nutritious ways to prepare favorite dishes, to allow people to eat a varied, delicious, and balanced diet. And although it wasn't created as a weight-loss diet, the DASH diet often does result in weight loss, which is a huge benefit to those who have diabetes or high blood pressure, or are at high risk of developing either disease.In The DASH Diet for Beginners, best-selling health and nutrition author John Chatham provides a straightforward approach to losing weight, reducing hypertension, and improving overall cardiovascular health. More than just a brief overview of the DASH diet, The DASH Diet for Beginners compiles everything you need to know to get started on a healthful new lifestyle. * 40 delicious and DASH-approved recipes include low-sodium versions of your favorite foods, from Creamy Spinach Dip and Beef Tostadas to Blackened Salmon Filets and Chocolate Strawberry Mousse. * DASH Diet for Beginners outlines much more than just the basic essentials to get started; it includes DASH diet guidelines and health benefits, scientific studies, a DASH diet foods list, and a healthy fitness and meal plan. * The Seven-Day DASH Diet Meal Plan provides an easy guide to jumpstart your health and weight loss.Lose weight, improve your health, and reduce your risk of heart disease with John Chatham's The DASH Diet for Beginners.

Wicked Plants: The Weed That Killed Lincoln's Mother and Other Botanical Atrocities


Amy Stewart - 2009
    In Wicked Plants, Stewart takes on over two hundred of Mother Nature’s most appalling creations. It’s an A to Z of plants that kill, maim, intoxicate, and otherwise offend. You’ll learn which plants to avoid (like exploding shrubs), which plants make themselves exceedingly unwelcome (like the vine that ate the South), and which ones have been killing for centuries (like the weed that killed Abraham Lincoln's mother). Menacing botanical illustrations and splendidly ghastly drawings create a fascinating portrait of the evildoers that may be lurking in your own backyard. Drawing on history, medicine, science, and legend, this compendium of bloodcurdling botany will entertain, alarm, and enlighten even the most intrepid gardeners and nature lovers.

Good Math: A Geek's Guide to the Beauty of Numbers, Logic, and Computation


Mark C. Chu-Carroll - 2013
    There is joy and beauty in mathematics, and in more than two dozen essays drawn from his popular “Good Math” blog, you’ll find concepts, proofs, and examples that are often surprising, counterintuitive, or just plain weird.Mark begins his journey with the basics of numbers, with an entertaining trip through the integers and the natural, rational, irrational, and transcendental numbers. The voyage continues with a look at some of the oddest numbers in mathematics, including zero, the golden ratio, imaginary numbers, Roman numerals, and Egyptian and continuing fractions. After a deep dive into modern logic, including an introduction to linear logic and the logic-savvy Prolog language, the trip concludes with a tour of modern set theory and the advances and paradoxes of modern mechanical computing.If your high school or college math courses left you grasping for the inner meaning behind the numbers, Mark’s book will both entertain and enlighten you.

Psych 101: Psychology Facts, Basics, Statistics, Tests, and More!


Paul Kleinman - 2012
    Psych 101 cuts out the boring details and statistics, and instead, gives you a lesson in psychology that keeps you engaged - and your synapses firing.From personality quizzes and the Rorschach Blot Test to B.F. Skinner and the stages of development, this primer for human behavior is packed with hundreds of entertaining psychology basics and quizzes you can't get anywhere else.So whether you're looking to unravel the intricacies of the mind, or just want to find out what makes your friends tick, Psych 101 has all the answers - even the ones you didn't know you were looking for.

Norse Mythology (Mythology Trilogy, #2)


Stephan Weaver - 2015
    This eBook delves into the past and emerges with a legion of breath taking accounts of events, gods, heroes, creatures, worlds and much more. Inside you will learn about... - Gods and Goddesses - The Nine Worlds - Heroes and Legends - Mythological Creatures - Ten Little Known Facts about Norse Mythology Whether you are a helpless fan of Norse Mythology or one of history this book will serve you in more ways than one. As the content is sourced from translations of the Old Norse literature, this will give you an authoritative insight in to the pre-Christian society of Europe.

The Great Book of Riddles: 250 Magnificent Riddles, Puzzles and Brain Teasers


Peter Keyne - 2014
    There are classical logic puzzles, lateral thinking puzzles, “who am I?” riddles, mathematical brain teasers, word ladders, ditloids, and a large selection of illustrated pen and paper, coins, cups, and toothpicks puzzles (please view the preview of this book for a full listing). This is the first time a collection of such breadth has been compiled and formatted especially for Kindle devices. The puzzles have been carefully organized into 25 chapters, and each question is hyperlinked to its solution, to provide utmost ease of navigation. Alongside the world’s most famous riddles, are some lesser known gems, and some brand new puzzles, in print here for the first time. Our aim was to create a definitive compendium of riddles and puzzles to bring enjoyment to people of all ages. We hope you will enjoy unraveling them as much as we enjoyed creating and editing them. Here are a handful of sample riddles: Outside the Box Riddles: You need to divide a round birthday cake into eight pieces, so each of your guests will have something to eat. How can you do this by making only three straight cuts with a knife, and without moving any of the pieces? The king’s two bodyguards developed an ingenious method for assuring the king’s safety. With the king standing between them, they would face in opposite directions; one looking to the west and the other to the east, but at the same time, and without the use of any reflective surfaces, they would both be able to observe the king clearly. How was this possible? Pure Logic Riddles: There are two glasses. One contains water, and the other contains an equal quantity of wine. A teaspoon of water is removed and mixed into the glass of wine. A teaspoon of the wine-water mixture is then removed and mixed into the glass of water. Which of the mixtures is now purer? The sorcerer’s tower was enchanted in such a way that it was able to build itself. Bricks, slates, tiles, and panes of glass, all flew to it of their own accord and danced into position. The tower doubled in size every day until after 100 days it reached a height that provided fine views over the entire realm. How many days did the tower take to reach half its full height? Lateral Thinking Puzzles: Five men are going to church. It starts to rain, and four of the men begin to run. When they arrive at the church, the four men who ran are soaking wet, whereas the fifth man, who didn’t run, is completely dry. How is this possible? Think Twice Riddles: If you are running a race, and you overtake the person in second place, what place do you move into? Word Riddles: SOS is read the same forwards, backwards, and even upside-down. What four-letter word also shares these properties? Number Puzzlers: How many letters are there in the answer to this question? You have an opportunity to buy a hen. In fact, you have been offered a choice between two quite remarkable animals. One of the hens produces six dozen dozen eggs per month, and the other produces a half dozen dozen. Admittedly, both seem impressive. Does it matter which hen you choose? Traditional Poetic Riddles: Five creatures cross a field of snow; But leave a single track behind Whose loops and bows are soon, I know, Unravelled by the mind. Coins, Cups, and Toothpicks Illustrated Riddles: A coin is dropped into an empty bottle and a cork is then inserted in the neck of the bottle. How is it possible to remove the coin without taking out the cork, or breaking the bottle?

The Past Present and Future of JavaScript


Axel Rauschmayer - 2012
    Now, hopes and expectations for JavaScript’s future are considerable.In this insightful report, Dr. Axel Rauschmayer explains how the combination of several technologies and opportunities in the past 15 years turned JavaScript’s fortunes. With that as a backdrop, he provides a detailed look at proposed new features and fixes in the next version, ECMAScript.next, and then presents his own JavaScript wish list—such as an integrated IDE.

Writers' & Artists' Yearbook 2014


Martina Cole - 2013
    Acknowledged by the publishing industry, authors and would-be writers as the indispensable companion to navigating the world of publishing, it appears for the first time as an e-book and in print. The 80 articles are reviewed and updated each year to provide inspirational and how-to guidance on writing for newspapers, magazines, scripts for film, radio and TV; advice on writing and submitting plays, poetry, non-fiction and fiction of all genres - from fantasy to thrillers to romance; how to contact publishers and agents; managing finances as a writer; negotiating legal issues, such as copyright; understanding the editing process; self-publishing and conventional routes; digital and print.Every single one of over 4,500 listings of who to contact, where and for which disciplines across the whole media, are reviewed and most updated, with new listings added every year. The combination of up-to-date listings information and expert advice, make the Yearbook a topical and reliable resource; the perfect gift for every writer every year.New articles for the 2014 edition include:Foreword by Martina Cole Writing successful erotic fictionWriting as co-authors by Louise Voss and Mark Edwards authors of thrillers Catch Your Death and Killing CupidHow to be a writer by novelist (The Harbour) and screenwriter Francesca BrillWriting for newspapers by journalist Kate MeadWriting short stories by Tania Hershman Being an agent in the digital age by literary agent Gordon Wise Writng flash fiction by Peter BlairMarketing, publicising and selling self-published books by Ben Cameron, Smith PublicityWhat to look for in a self-publishing provider by Jeremy Thomspon of MatadorArticles from experts and authors, include:Bernard Cornwall on writing historical fictionWilliam Dalrymple on writing about travelDavid Eldridge on writing for the theatreKatie Fforde on writing romantic fictionNeil Gaiman on writing cross-over fictionClaire Tomalin on writing biographiesSimon Winchester on writing non-fictionBenjamin Zephaniah on writing poetry