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Guesstimation 2.0

2012-09-30 Business & Economics
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Release : 2012-09-30
Genre : Business & Economics
Kind : eBook
Book Rating : 80X/5 ( reviews)

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Book Synopsis Guesstimation 2.0 by : Lawrence Weinstein

Download or read book Guesstimation 2.0 written by Lawrence Weinstein. This book was released on 2012-09-30. Available in PDF, EPUB and Kindle. Book excerpt: Simple and effective techniques for quickly estimating virtually anything Guesstimation 2.0 reveals the simple and effective techniques needed to estimate virtually anything—quickly—and illustrates them using an eclectic array of problems. A stimulating follow-up to Guesstimation, this is the must-have book for anyone preparing for a job interview in technology or finance, where more and more leading businesses test applicants using estimation questions just like these. The ability to guesstimate on your feet is an essential skill to have in today's world, whether you're trying to distinguish between a billion-dollar subsidy and a trillion-dollar stimulus, a megawatt wind turbine and a gigawatt nuclear plant, or parts-per-million and parts-per-billion contaminants. Lawrence Weinstein begins with a concise tutorial on how to solve these kinds of order of magnitude problems, and then invites readers to have a go themselves. The book features dozens of problems along with helpful hints and easy-to-understand solutions. It also includes appendixes containing useful formulas and more. Guesstimation 2.0 shows how to estimate everything from how closely you can orbit a neutron star without being pulled apart by gravity, to the fuel used to transport your food from the farm to the store, to the total length of all toilet paper used in the United States. It also enables readers to answer, once and for all, the most asked environmental question of our day: paper or plastic?

Guesstimation

2009-02-09 Mathematics
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Release : 2009-02-09
Genre : Mathematics
Kind : eBook
Book Rating : 443/5 ( reviews)

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Book Synopsis Guesstimation by : Lawrence Weinstein

Download or read book Guesstimation written by Lawrence Weinstein. This book was released on 2009-02-09. Available in PDF, EPUB and Kindle. Book excerpt: Guesstimation is a book that unlocks the power of approximation--it's popular mathematics rounded to the nearest power of ten! The ability to estimate is an important skill in daily life. More and more leading businesses today use estimation questions in interviews to test applicants' abilities to think on their feet. Guesstimation enables anyone with basic math and science skills to estimate virtually anything--quickly--using plausible assumptions and elementary arithmetic. Lawrence Weinstein and John Adam present an eclectic array of estimation problems that range from devilishly simple to quite sophisticated and from serious real-world concerns to downright silly ones. How long would it take a running faucet to fill the inverted dome of the Capitol? What is the total length of all the pickles consumed in the US in one year? What are the relative merits of internal-combustion and electric cars, of coal and nuclear energy? The problems are marvelously diverse, yet the skills to solve them are the same. The authors show how easy it is to derive useful ballpark estimates by breaking complex problems into simpler, more manageable ones--and how there can be many paths to the right answer. The book is written in a question-and-answer format with lots of hints along the way. It includes a handy appendix summarizing the few formulas and basic science concepts needed, and its small size and French-fold design make it conveniently portable. Illustrated with humorous pen-and-ink sketches, Guesstimation will delight popular-math enthusiasts and is ideal for the classroom.

Street-Fighting Mathematics

2010-03-05 Education
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Release : 2010-03-05
Genre : Education
Kind : eBook
Book Rating : 591/5 ( reviews)

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Book Synopsis Street-Fighting Mathematics by : Sanjoy Mahajan

Download or read book Street-Fighting Mathematics written by Sanjoy Mahajan. This book was released on 2010-03-05. Available in PDF, EPUB and Kindle. Book excerpt: An antidote to mathematical rigor mortis, teaching how to guess answers without needing a proof or an exact calculation. In problem solving, as in street fighting, rules are for fools: do whatever works—don't just stand there! Yet we often fear an unjustified leap even though it may land us on a correct result. Traditional mathematics teaching is largely about solving exactly stated problems exactly, yet life often hands us partly defined problems needing only moderately accurate solutions. This engaging book is an antidote to the rigor mortis brought on by too much mathematical rigor, teaching us how to guess answers without needing a proof or an exact calculation. In Street-Fighting Mathematics, Sanjoy Mahajan builds, sharpens, and demonstrates tools for educated guessing and down-and-dirty, opportunistic problem solving across diverse fields of knowledge—from mathematics to management. Mahajan describes six tools: dimensional analysis, easy cases, lumping, picture proofs, successive approximation, and reasoning by analogy. Illustrating each tool with numerous examples, he carefully separates the tool—the general principle—from the particular application so that the reader can most easily grasp the tool itself to use on problems of particular interest. Street-Fighting Mathematics grew out of a short course taught by the author at MIT for students ranging from first-year undergraduates to graduate students ready for careers in physics, mathematics, management, electrical engineering, computer science, and biology. They benefited from an approach that avoided rigor and taught them how to use mathematics to solve real problems. Street-Fighting Mathematics will appear in print and online under a Creative Commons Noncommercial Share Alike license.

Mythematics

2009-09-08 Mathematics
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Release : 2009-09-08
Genre : Mathematics
Kind : eBook
Book Rating : 903/5 ( reviews)

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Book Synopsis Mythematics by : Michael Huber

Download or read book Mythematics written by Michael Huber. This book was released on 2009-09-08. Available in PDF, EPUB and Kindle. Book excerpt: Fun math puzzles based on the Twelve Labors of Hercules How might Hercules, the most famous of the Greek heroes, have used mathematics to complete his astonishing Twelve Labors? From conquering the Nemean Lion and cleaning out the Augean Stables, to capturing the Erymanthean Boar and entering the Underworld to defeat the three-headed dog Cerberus, Hercules and his legend are the inspiration for this book of fun and original math puzzles. While Hercules relied on superhuman strength to accomplish the Twelve Labors, Mythematics shows how math could have helped during his quest. How does Hercules defeat the Lernean Hydra and stop its heads from multiplying? Can Hercules clean the Augean Stables in a day? What is the probability that the Cretan Bull will attack the citizens of Marathon? How does Hercules deal with the terrifying Kraken? Michael Huber's inventive math problems are accompanied by short descriptions of the Twelve Labors, taken from the writings of Apollodorus, who chronicled the life of Hercules two thousand years ago. Tasks are approached from a mathematical modeling viewpoint, requiring varying levels of knowledge, from basic logic and geometry to differential and integral calculus. Mythematics provides helpful hints and complete solutions, and the appendixes include a brief history of the Hercules tale, a review of mathematics and equations, and a guide to the various disciplines of math used throughout the book. An engaging combination of ancient mythology and modern mathematics, Mythematics will enlighten and delight mathematics and classics enthusiasts alike.

She's Come Undone

2012-12-11 Fiction
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Release : 2012-12-11
Genre : Fiction
Kind : eBook
Book Rating : 342/5 ( reviews)

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Book Synopsis She's Come Undone by : Wally Lamb

Download or read book She's Come Undone written by Wally Lamb. This book was released on 2012-12-11. Available in PDF, EPUB and Kindle. Book excerpt: Meet Dolores Price. She's thirteen, wise-mouthed but wounded. Beached like a whale in front of her bedroom TV, she spends the next few years nourishing herself with the chocolate, crisps and Pepsi her anxious mother supplies. When she finally rolls into young womanhood at 257 pounds, Dolores is no stronger and life is no kinder. But this time she's determined to rise to the occasion and give herself one more chance before really going belly up. In his extraordinary coming-of-age odyssey, Wally Lamb invites us to hitch an incredible ride on a journey of love, pain, and renewal with the most heartbreakingly comical heroine to come along in years. At once a fragile girl and a hard-edged cynic, so tough to love yet so inimitably loveable, Dolores is as poignantly real as our own imperfections.

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