This text presents a careful introduction to methods of cryptology and error correction in wide use throughout the world and the concepts of abstract algebra and number theory that are essential for understanding these methods. The objective is to provide a thorough understanding of RSA, Diffie-Hellman, and Blum-Goldwasser cryptosystems and Hamming and Reed-Solomon error correction: how they are constructed, how they are made to work efficiently, and also how they can be attacked. To reach that level of understanding requires and motivates many ideas found in a first course in abstract algebra-rings, fields, finite abelian groups, basic theory of numbers, computational number theory, homomorphisms, ideals, and cosets. Those who complete this book will have gained a solid mathematical foundation for more specialized applied courses on cryptology or error correction, and should also be well prepared, both in concepts and in motivation, to pursue more advanced study in algebra and number theory. This text is suitable for classroom or online use or for independent study. Aimed at students in mathematics, computer science, and engineering, the prerequisite includes one or two years of a standard calculus sequence. Ideally the reader will also take a concurrent course in linear algebra or elementary matrix theory. A solutions manual for the 400 exercises in the book is available to instructors who adopt the text for their course.
The Amazing Power of Our Errors:A Manual for Living Pedro Martin-Moreno
The Amazing Power of Our Errors:A Manual for Living Pedro Martín-Moreno
K9 Investigation Errors:A Manual for Avoiding Mistakes Resi Gerritsen, Ruud Haak
The fourth edition is augmented by more than 70 new formulas. In particular, we have included some key concepts and results from trade theory, games of incomplete information and combinatorics. In addition there are scattered additions of new formulas in many chapters. Again we are indebted to a number of people who has suggested corrections, - provements and new formulas. In particular, we would like to thank Jens-Henrik Madsen, Larry Karp, Harald Goldstein, and Geir Asheim. In a reference book, errors are particularly destructive. We hope that readers who ?nd our remaining errors will call them to our attention so that we may purge them from future editions. Oslo and Berkeley, May 2005 Knut Sydsæter, Arne Strøm, Peter Berck From the preface to the third edition Thepracticeofeconomicsrequiresawide-rangingknowledgeofformulasfrommat- matics, statistics, andmathematicaleconomics. Withthisvolumewehopetopresent a formulary tailored to the needs of students and working professionals in economics. In addition to a selection of mathematical and statistical formulas often used by economists, this volume contains many purely economic results and theorems. It containsjusttheformulasandtheminimumcommentaryneededtorelearnthema- ematics involved. We have endeavored to state theorems at the level of generality economists might ?nd useful. In contrast to the economic maxim, everything is twice more continuously di?erentiable than it needs to be , we have usually listed theregularityconditionsfortheoremstobetrue.Wehopethatwehaveachieveda level of explication that is accurate and useful without being pedantic.
Let´s be honest. Parenting is hard. From the moment children take their first breaths, parents are faced with decisions and choices that no manual could ever fully explain. And the way you parent is constantly changing: babies need protection, toddlers need direction, and teens need influence. We as parents are simply expected to do it and do it well. From two therapists who have a combined 25 years of experience working with families, comes a new kind of parenting audiobook. This audiobook doesn´t focus on technique, a discipline scheme, or parenting style. This audiobook focuses on the parent themselves, specifically the kind of thinking that makes parents effective or ineffective. When Parenting Backfires examines 12 thinking errors commonly made by parents. In each chapter Dan and David: Explain the thinking error How it backfires What parents can do to correct the thinking error And real life examples of parents who have recognized their thinking error, made the correction, and improved their effectiveness. Let this audiobook do its work. Let down your guard and be open to the new ideas. The biggest risk you´ll take is to your ego as you improve your parenting skills and your relationship with your kids. I think any effective parent is willing to take those odds. Are you? 1. Language: English. Narrator: Michael Hanko. Audio sample: http://samples.audible.de/bk/acx0/094770/bk_acx0_094770_sample.mp3. Digital audiobook in aax.
Un manual de primeros auxilios con todas las claves para lograr el éxito en la difícil tarea de ser padres. Ser padres es la aventura más arriesgada pero gratificante que se pueda vivir. La educación de los hijos comienza cuando nacen. Para que el niño pueda desarrollar su autoestima, y convertirse en alguien capaz de confiar en la vida y en los demás, hay que fijarse en lo positivo y no en lo negativo, reforzarle en lugar de castigarle, negociar y dialogar antes que imponer, hacerle ver que nadie nace enseñado, que hay que cometer errores para aprender. Aunque a menudo los padres tienen la sensación de haber fracasado en esta tarea, nunca es tarde para corregir y mejorar la educación y la convivencia con los hijos. Conseguirlo exige mucha paciencia y autocontrol, pero con el tiempo se crean relaciones sólidas, duraderas, y de confianza. Este audio libro aporta las pautas para alcanzar este objetivo, aprendiendo a educar en valores a los hijos, reconocer y entender su personalidad, adaptarse a los nuevos tipos de familia, mejorar las relaciones con los hermanos, corregir las llamadas conductas problemáticas o aplicar las técnicas de meditación más adecuadas para cada edad. Please note: This audiobook is in Spanish. 1. Spanish. Carmen Rosa Franco de la Rosa. http://samples.audible.de/bk/adbl/031262/bk_adbl_031262_sample.mp3.