Alternating passages of extraordinarily lucid mathematical exposition with chapters of elegantly composed biography and history, Prime Obsession is a fascinating and fluent account of an epic mathematical mystery that continues to challenge and excite the world.

    Concepts and techniques are presented in a clear and concise style, giving readers the opportunity to master key topics.

    Many examples are taken from real-world projects. The book focuses on high-level design as well as the gritty details of the Python syntax. The provided exercises inspire the reader to think about his or her own code, rather than providing solved problems. If you're new to Object Oriented Programming techniques, or if you have basic Python skills and wish to learn in depth how and when to correctly apply Object Oriented Programming in Python, this is the book for you. If you are an object-oriented programmer for other languages, you too will find this book a useful introduction to Python, as it uses terminology you are already familiar with. Python 2 programmers seeking a leg up in the new world of Python 3 will also find the book beneficial, and you need not necessarily know Python 2.

    Since its first appearance in 1956 there have been eight editions as well as translations from the original Russian into Ukrainian, Estonian, Lettish, and Lithuanian. Almost a million copies of the Russian version alone have been sold.Part of the reason for the book's success is its marvelously varied assortment of brainteasers ranging from simple "catch" riddles to difficult problems (none, however, requiring advanced mathematics). Many of the puzzles will be new to Western readers, while some familiar problems have been clothed in new forms. Often the puzzles are presented in the form of charming stories that provide non-Russian readers with valuable insights into contemporary Russian life and customs. In addition, Martin Gardner, former editor of the Mathematical Games Department, Scientific American, has clarified and simplified the book to make it as easy as possible for an English-reading public to understand and enjoy. He has been careful, moreover, to retain nearly all the freshness, warmth, and humor of the original.Lavishly illustrated with over 400 clear diagrams and amusing sketches, this inexpensive edition of the first English translation will offer weeks or even months of stimulating entertainment. It belongs in the library of every puzzlist or lover of recreational mathematics.

    But sometimes the solutions are not as interesting as the beautiful symmetric patterns that lead to them. Written in a friendly style for a general audience, Fearless Symmetry is the first popular math book to discuss these elegant and mysterious patterns and the ingenious techniques mathematicians use to uncover them.Hidden symmetries were first discovered nearly two hundred years ago by French mathematician �variste Galois. They have been used extensively in the oldest and largest branch of mathematics--number theory--for such diverse applications as acoustics, radar, and codes and ciphers. They have also been employed in the study of Fibonacci numbers and to attack well-known problems such as Fermat's Last Theorem, Pythagorean Triples, and the ever-elusive Riemann Hypothesis. Mathematicians are still devising techniques for teasing out these mysterious patterns, and their uses are limited only by the imagination.The first popular book to address representation theory and reciprocity laws, Fearless Symmetry focuses on how mathematicians solve equations and prove theorems. It discusses rules of math and why they are just as important as those in any games one might play. The book starts with basic properties of integers and permutations and reaches current research in number theory. Along the way, it takes delightful historical and philosophical digressions. Required reading for all math buffs, the book will appeal to anyone curious about popular mathematics and its myriad contributions to everyday life.

    Whether you're a student, a professional, or just curious about statistical analysis, Head First's brain-friendly formula helps you get a firm grasp of statistics so you can understand key points and actually use them. Learn to present data visually with charts and plots; discover the difference between taking the average with mean, median, and mode, and why it's important; learn how to calculate probability and expectation; and much more.Head First Statistics is ideal for high school and college students taking statistics and satisfies the requirements for passing the College Board's Advanced Placement (AP) Statistics Exam. With this book, you'll:Study the full range of topics covered in first-year statistics Tackle tough statistical concepts using Head First's dynamic, visually rich format proven to stimulate learning and help you retain knowledge Explore real-world scenarios, ranging from casino gambling to prescription drug testing, to bring statistical principles to life Discover how to measure spread, calculate odds through probability, and understand the normal, binomial, geometric, and Poisson distributions Conduct sampling, use correlation and regression, do hypothesis testing, perform chi square analysis, and moreBefore you know it, you'll not only have mastered statistics, you'll also see how they work in the real world. Head First Statistics will help you pass your statistics course, and give you a firm understanding of the subject so you can apply the knowledge throughout your life.

    Where did the first caveman or cave-woman get the idea that somebody, somewhere existed who needed to be worshipped, appeased, and followed? And how did the idea evolve that if you didn't say, do, or offer the right things this being would be upset, agitated, or even angry with you? Where did religion come from?

    With this concise book, you will quickly gain working knowledge of Sinatra and its minimalist approach to building both standalone and modular web applications. Sinatra serves as a lightweight wrapper around Rack middleware, with syntax that maps closely to functions exposed by HTTP verbs, which makes it ideal for web services and APIs. If you have experience building applications with Ruby, you’ll quickly learn language fundamentals and see under-the-hood techniques, with the help of several practical examples. Then you’ll get hands-on experience with Sinatra by building your own blog engine. Learn Sinatra’s core concepts, and get started by building a simple application Create views, manage sessions, and work with Sinatra route definitions Become familiar with the language’s internals, and take a closer look at Rack Use different subclass methods for building flexible and robust architectures Put Sinatra to work: build a blog that takes advantage of service hooks provided by the GitHub API

    Distilled into 1001 mini-essays arranged thematically, this unique book moves steadily from the basics through to the most advanced areas of math, making it the ideal guide for both the beginner and the math wiz.The book covers all of the fundamental mathematical disciplines:Geometry Numbers Analysis Logic Algebra Probability and statistics Applied mathematics Discrete mathematics Games and recreational mathematics Philosophy and metamathematicsExpert mathematician Richard Elwes explains difficult concepts in the simplest language with a minimum of jargon. Along the way he reveals such mathematical magic as how to count to 1023 using just 10 fingers and how to make an unbreakable code.Enlightening and entertaining, Mathematics 1001 makes the language of math come alive.

    This proven and accessible text speaks to beginning engineering and math students through a wealth of pedagogical aids, including an abundance of examples, explanations, "Remarks" boxes, definitions, and group projects. Using a straightforward, readable, and helpful style, this book provides a thorough treatment of boundary-value problems and partial differential equations.

    He was eager to begin his first practice, but it turned out to be more than he bargained for. In just two years, in September, 1918, the entire village was sickened in rapid succession in the flu pandemic that killed quickly and indiscriminately throughout the world. It was wartime, and Nixon was unable to find help., This story is an up close and personal account of what it was like to be sick with the HINI type virus in 1918. It is a tale of a dedicated doctor whose selflessness, compassion and courage helped the villagers survive in the pandemic that killed more people in a year than the Black Death killed in a century...

    He includes information on Java Platform Standard Edition 6 (Java SE 6) and offers complete coverage of the Java language, its syntax, keywords, and fundamental programming principles.

    Enhancements to this edition include a more thorough coverage of transport processes, plus new or expanded coverage of separation process applications, fluidized beds, non-Newtonian fluids, membrane separation processes and gas-membrane theory, and much more. The book contains 240+ example problems and 550+ homework problems.

    Scott Peck, renowned for his writings on spiritual growth and author of the classic, The Road Less Traveled, has inspired countless people with his words of wisdom and insight. Now, in Abounding Grace, Dr. Peck presents us with a collection of his favorite quotations on such essential aspects of life as happiness, love, faith, and virtue. Gleaned from writers and thinkers, both famous and obscure, ancient and modern, these words--sometimes paradoxical, sometimes humorous, always eloquent and thought provoking--serve as guideposts on the road to a more spiritual existence. In his commentary introducing each of the 12 parts of his book, Dr. Peck challenges us to live a life of consciousness, goodness, and wholeness, and to look within ourselves and seriously consider how we may make the most of who we are. Through questions, examples, and anecdotes from his own experiences, Dr. Peck provides an original, fascinating, and enriching reading experience, creating, in truth, An Anthology of Wisdom. Abounding Grace is divided into 12 parts: Happiness, Courage, Compassion, Purity, Perseverance, Courtesy, Faith, Goodness, Love, Respect, Strength, and Wisdom. Dr. Peck has written a lengthy introduction and a commentary for each of the 12 parts. Below is an excerpt from his commentary on Happiness:"Happiness as an unmodified goal will likely be self-defeating. . . . Seek to be loved and you probably won't be; seek to love, on the other hand, and you probably will be. Look solely for happiness, and I doubt you'll find it. Forget about happiness, seek wisdom and goodness, and happiness will probably find you." The following are a few quotations from the same part:"Happiness depends upon ourselves." -Aristotle"The bird of paradise alights only upon the hand that does not grasp." -John Berry"When you jump for joy, beware that no one moves the ground from beneath your feet." -Stanislaw Lec"We all may have come on different ships, but we're in the same boat now." -Martin Luther King Jr."Arrange whatever pieces come your way." -Virginia Woolf "Joy is not in things; it is in us." -Richard

    From Hindu mythology to Aztec sacrifices, butterflies have served as a metaphor for resurrection and transformation. Even during World War II, children in a Polish death camp scratched hundreds of butterflies onto the walls of their barracks. But as Russell points out in this rich and lyrical meditation, butterflies are above all objects of obsession. From the beastly horned caterpillar, whose blood helps it count time, to the peacock butterfly, with wings that hiss like a snake, Russell traces the butterflies through their life cycles, exploring the creatures' own obsessions with eating, mating, and migrating. In this way, she reveals the logic behind our endless fascination with butterflies as well as the driving passion of such legendary collectors as the tragic Eleanor Glanville, whose children declared her mad because of her compulsive butterfly collecting, and the brilliant Henry Walter Bates, whose collections from the Amazon in 1858 helped develop his theory of mimicry in nature. Russell also takes us inside some of the world's most prestigious natural history museums, where scientists painstakingly catalogue and categorize new species of Lepidoptera, hoping to shed light on insect genetics and evolution. A luminous journey through an exotic world of obsession and strange beauty, this is a book to be treasured by anyone who's ever watched a butterfly mid-flight and thought, as Russell has, "I've entered another dimension."