Symmetry is when one shape looks the same if you flip, slide, or turn it. It's in words and even letters. It's in both nature and man-made things. In fact, art, design, decoration, and architecture are full of it. This clear and concise book explains different types of symmetry and shows you how to make your own symmetrical masterpieces. Notes and glossary are included.

    With tips, how-to's, letters from girls, and facts from the experts, here's straightforward advice you can really use.

    From the splendor of the pharaoh's court to the everyday life of ordinary people, the great civilization of the Nile valley is revealed in page after page of dramatic photos of the objects they left behind: human and animal mummies, reed brushes, children's pull-toys, and more. "Stunning."--School Library Journal.

    This book is designed to give the reader insight into the power and beauty that accrues from a rich interplay between different areas of mathematics. The book carefully develops the theory of different algebraic structures, beginning from basic definitions to some in-depth results, using numerous examples and exercises to aid the reader's understanding. In this way, readers gain an appreciation for how mathematical structures and their interplay lead to powerful results and insights in a number of different settings. * The emphasis throughout has been to motivate the introduction and development of important algebraic concepts using as many examples as possible.

    Commercial game development expert Robert Nystrom presents an array of general solutions to problems encountered in game development. For example, you'll learn how double-buffering enables a player to perceive smooth and realistic motion, and how the service locator pattern can help you provide access to services such as sound without coupling your code to any particular sound driver or sound hardware. Games have much in common with other software, but also a number of unique constraints. Some of the patterns in this book are well-known in other domains of software development. Other of the patterns are unique to gaming. In either case, Robert Nystrom bridges from the ivory tower world of software architecture to the in-the-trenches reality of hardcore game programming. You'll learn the patterns and the general problems that they solve. You'll come away able to apply powerful and reusable architectural solutions that enable you to produce higher quality games with less effort than before. Applies classic design patterns to game programming. Introduces new patterns specific to game programming. Brings abstract software architecture down to Earth with approachable writing and an emphasis on simple code that shows each pattern in practice. What you'll learn Overcome architectural challenges unique to game programming Apply lessons from the larger software world to games. Tie different parts of a game (graphics, sound, AI) into a cohesive whole. Create elegant and maintainable architecture. Achieve good, low-level performance. Gain insight into professional, game development. Who this book is forGame Programming Patterns is aimed at professional game programmers who, while successful in shipping games, are frustrated at how hard it sometimes is to add and modify features when a game is under development. Game Programming Patterns shows how to apply modern software practices to the problem of game development while still maintaining the blazing-fast performance demanded by hard-core gamers. Game Programming Patterns also appeals to those learning about game programming in their spare time. Hobbyists and aspiring professionals alike will find much to learn in this book about pathfinding, collision detection, and other game-programming problem domains.

    

    A VINTAGE ORIGINAL.What do we see when we read? Did Tolstoy really describe Anna Karenina? Did Melville ever really tell us what, exactly, Ishmael looked like? The collection of fragmented images on a page - a graceful ear there, a stray curl, a hat positioned just so - and other clues and signifiers helps us to create an image of a character. But in fact our sense that we know a character intimately has little to do with our ability to concretely picture our beloved - or reviled - literary figures.In this remarkable work of nonfiction, Knopf's Associate Art Director Peter Mendelsund combines his profession, as an award-winning designer; his first career, as a classically trained pianist; and his first love, literature - he thinks of himself first, and foremost, as a reader - into what is sure to be one of the most provocative and unusual investigations into how we understand the act of reading.

    Pearl breaks the big we-need-a-sandcastle problem into smaller steps, then uses conditionals, loops, and other basic coding concepts to tell Pascal exactly what to do. But building a sandcastle isn’t as easy as it sounds when surfboards, mischievous dogs, and coding mishaps get in the way! Just when it looks like the sandcastle might never work, Pearl uses her coding skills to save the day and create something even better: a gorgeous sandcastle kingdom!

    George and Small, the Caldecott Medal-winning team who created So You Want to Be President? , are back with another spirited and witty look at history-this time focusing on the inventors and inventions who have given us lightbulbs, automobiles, and all the other things that keep the world humming. So You Want to Be an Inventor? features some of the world's best-known inventors-Thomas Edison, Benjamin Franklin, Eli Whitney-as well as lesser-known geniuses like Georges de Mestral (inventor of Velcro), Wilhelm Roentgen (inventor of X rays), and Hedy Lamarr (inventor of a system that became the basis for satellite communication-who knew?). Whether you're a dreamer or a loner, a copycat or a daredevil, this book might just inspire readers to invent something that could change the world!

    Never again will you order the Poisson Distribution in a French restaurant!This updated version features all new material.

    But for some reason they choose to ignore those guidelines and churn out turgid, pompous, and obscure prose. Distinguished sociologist Howard S. Becker, true to his calling, looks for an explanation for this bizarre behavior not in the psyches of his colleagues but in the structure of his profession. In this highly personal and inspirational volume he considers academic writing as a social activity.Both the means and the reasons for writing a thesis or article or book are socially structured by the organization of graduate study, the requirements for publication, and the conditions for promotion, and the pressures arising from these situations create the writing style so often lampooned and lamented. Drawing on his thirty-five years' experience as a researcher, writer, and teacher, Becker exposes the foibles of the academic profession to the light of sociological analysis and gentle humor. He also offers eminently useful suggestions for ways to make social scientists better and more productive writers. Among the topics discussed are how to overcome the paralyzing fears of chaos and ridicule that lead to writer's block; how to rewrite and revise, again and again; how to adopt a persona compatible with lucid prose; how to deal with that academic bugaboo, "the literature." There is also a chapter by Pamela Richards on the personal and professional risks involved in scholarly writing.In recounting his own trials and errors Becker offers his readers not a model to be slavishly imitated but an example to inspire. Throughout, his focus is on the elusive work habits that contribute to good writing, not the more easily learned rules of grammar and punctuation. Although his examples are drawn from sociological literature, his conclusions apply to all fields of social science, and indeed to all areas of scholarly endeavor. The message is clear: you don't have to write like a social scientist to be one.

    The National Geographic Kids Bird Guide of North America will be both accessible and tons of fun. Fifty of the country's most popular birds will be laid out in stunning two-page spreads that will include information such as their range, the sounds they make, and the food they like to eat. Each profile will also include a cool or weird fun fact, and a feature called "A Closer Look," which digs deeper into once aspect of the bird's life (eating habits, birdsongs, etc.). Each profile will also display a fact box with the bird's scientific name, weight, length, and wingspan. Kids will also find tons of fun facts, bright and bold colors, full-color photographs, and layering of information that makes everything jump off the page. Birds will be organized by habitat, and habitat spreads will show where different birds live within each environment. The guide also explains all the basics that kids need to know about spotting birds. Features will include activities, such as how to build a birdhouse and how to build a birdfeeder, sidebars highlighting fascinating info, lists, range maps, and much more. Conservation information, a find out more section, glossary, and index will add ample back matter to round out this book.

    With passion and wit, Mary Oliver skillfully imparts expertise from her long, celebrated career as a disguised poet. She walks readers through exactly how a poem is built, from meter and rhyme, to form and diction, to sound and sense, drawing on poems by Robert Frost, Elizabeth Bishop, and others. This handbook is an invaluable glimpse into Oliver’s prolific mind??—??a must-have for all poetry-lovers.

    Lynch, supported by studies of Los Angeles, Boston, and Jersey City, formulates a new criterion -- imageability -- and shows its potential value as a guide for the building and rebuilding of cities. The wide scope of this study leads to an original and vital method for the evaluation of city form. The architect, the planner, and certainly the city dweller will all want to read this book.

    The complexity of nature's shapes differs in kind, not merely degree, from that of the shapes of ordinary geometry, the geometry of fractal shapes.Now that the field has expanded greatly with many active researchers, Mandelbrot presents the definitive overview of the origins of his ideas and their new applications. The Fractal Geometry of Nature is based on his highly acclaimed earlier work, but has much broader and deeper coverage and more extensive illustrations.