Métodos Numéricos
Introdução, Aplicação e Programação
José Alberto Rodrigues  
More Details

Esta obra dirige-se aos alunos dos primeiros anos universitários que pretendam adquirir conhecimentos em métodos de computação numérica. Fornece aos leitores os métodos, as ideias e as ferramentas, evitando, sempre que possível, as demonstrações formais na apresentação dos processos numéricos estudados.
Todos os capítulos são precedidos ou seguidos de exemplos simples, de exercícios, de esquemas de programação dos métodos e da listagem dos programas para a calculadora Texas Instruments Voyage™ 200 e TI-89.

 

ÍNDICE
PREFÁCIO / CAPÍTULO 1 - REPRESENTAÇÃO DE DADOS E ESTUDO DE ERROS: Bases de representação / Representação dos números em computador / Estudo de Erros / Propagação de erros / CAPÍTULO 2 - RESOLUÇÃO DE EQUAÇÕES NÃO LINEARES: Introdução / Método gráfico / Métodos numéricos: Método da Bisecção; Método da Falsa Posição; Método do ponto fixo; Método de Newton; Método de Secante / Equações algébricas: Método de Newton para equações algébricas; Localização de raízes de equações algébricas / CAPÍTULO 3 - RESOLUÇÃO DE SISTEMAS DE EQUAÇÕES LINEARES: Métodos directos para resolver sistemas equações lineares: Método de eliminação de Gauss; Factorização LU; Cálculo do determinante; Cálculo da matriz inversa; Escolha de pivot; Sistema com matrizes tridiagonais; Sistemas com matrizes simétricas. Método da raiz quadrada. Método de Cholesky; Análise de erros / Métodos iterativos para resolver sistemas de equações lineares: Métodos iterativos; A forma canónica dos métodos iterativos de um passo; Estudo da convergência dos métodos iterativos / Métodos iterativos para resolver sistemas de equações não lineares: Método do Ponto Fixo; Método de Newton / CAPÍTULO 4 - INTERPOLAÇÃO POLINOMIAL: Introdução; Fórmula interpoladora de Lagrange; Aplicação do polinómio de interpolação; Estudo do erro de interpolação; Interpolação linear; Fórmula de Lagrange para pontos igualmente espaçados / Diferenças divididas: Cálculo das diferenças divididas; Alguns resultados sobre diferenças divididas / Fórmula de Newton para o polinómio de interpolação / Método de cálculo do valor de um polinómio / Fórmula de Newton para pontos igualmente espaçados / Fórmula de Newton-Gregory do polinómio de interpolação / Método dos Mínimos Quadrados: Caso Contínuo; Caso Discreto; Estudo do erro do método; Determinação da melhor solução de um sistema linear / CAPÍTULO 5 - INTEGRAÇÃO NUMÉRICA: Introdução / Regra do ponto médio / Regra dos trapézios / Regra de Simpson / Fórmula de graus superiores / Integração adaptativa / Fórmulas de Gauss-Legendre / CAPÍTULO 6 - RESOLUÇÃO NUMÉRICA DE EQUAÇÕES DIFERENCIAIS ORDINÁRIA: Problema de valor inicial / Método de Picard / Solução numérica usando a série de Taylor / Método de Taylor de ordem k / Método de Euler / Convergência do Método de Euler / Um Método Preditor-Corrector / Métodos de Runge-Kutta / Resolução de sistemas de equações Diferenciais / Métodos de Adams / CAPÍTULO 7 - VALORES E VECTORES PRÓPRIOS: Introdução / Localização dos valores próprios / Método de Fadeev-Le Verrier / Método das potências / Método das potências inversas / Método QR / ÍNDICE REMISSIVO / ÍNDICE DE EXEMPLOS / ÍNDICE DE PROGRAMAS / BIBLIOGRAFIA.

9726183111
Microelectronic Circuits: International Student Edition including CD-ROM Sedra/Smith  
More Details

Now in a new edition, this market-leading textbook continues its standard of excellence and innovation built on the solid pedagogical foundation that instructors expect from Adel Sedra and Kenneth C. Smith. All material in the fifth edition is thoroughly updated to reflect changes in technology-CMOS technology in particular. These technological changes have shaped the book's organization and topical coverage, making it the most current resource available for teaching tomorrow's engineers how to analyze and design electronic circuits. Highlights of the Fifth Edition BLStreamlined Organizational Structure: The "must-cover" topics are placed first in each chapter; the more specialized material appears last. The first five chapters, Part I, are organized to form a coherent single-semester introductory course. Similarly, the next five chapters, Part II, present a body of material for a second one-semester course. The final four chapters, Part III, contain significant topics that can be used as enhancements or substitutes for some of the material in earlier chapters as well as resources for project or thesis work. BLMOSFETs and BJTs: Chapter 4 (MOSFETs) and Chapter 5 (BJTs) are completely rewritten. The MOSFET coverage is placed first but the two devices can be covered in any desired order. BLIC MOS and Bipolar Amplifiers: Chapter 6 (Single-Stage Integrated-Circuit Amplifiers) and Chapter 7 (Differential and Multistage Amplifiers) are completely rewritten to introduce IC MOS and bipolar amplifiers in an accessible, systematic way. BLAmplifier Frequency Response: Amplifier frequency response is now presented where needed (a "just-in-time" approach). This includes brief coverage of the frequency responses of the common source and common emitter amplifiers in Chapters 4 and 5, respectively. BEnhanced Student Support BLA new CD-packaged with every copy of the text-includes a free student version of PSpiceRG and the files for all SPICE analysis and design examples. BLRevised summary sections and many more summary tables are presented. BLNumerous new and varied review exercises and end-of-chapter problems are provided in addition to more SPICE examples with schematic captures. BLKC's Problems and Solutions for Microelectronic Circuits, 5/e, by Kenneth C. Smith (KC), offers hundreds of additional problems created by the author and solved in detail for extra student practice and review. These problems focus on the design and problem-solving skills needed by every student taking this course. (0-19-517104-7) BLLaboratory Explorations for Microelectronic Circuits, 5/e, by Kenneth C. Smith (KC), provides laboratory exercises that test students' fundamental knowledge. Employing a learn-by-doing approach and emphasizing the use of computational tools, it allows students to explore real-world engineering. (0-19-517105-5) BLAn accompanying website (http://www.sedrasmith.org) features: -SPICE Models -Links to industry and academic sites of related interest -A sample chapter available for download (Chapter 5. Bipolar Junction Transistors) Enhanced Instructor Support BLAn Instructor's Manual with Transparency Masters contains solutions to all exercises and end-of-chapter problems plus hard copy masters of transparency acetates. (0-19-517268-X) BLpowerPointRG Overheads on CD contain all of the figures with captions from the main text. (0-19-517267-1) BLTransparency Acetates offer key figures selected from the main text. (0-19-517269-8) BLText materials for subjects that are no longer covered in the text (JFETs, GaAs devices and circuits, TTL digital circuits) are included on the Student CD and the website.

0195142527
Nanotecnologia e Nanofísica Rui Filipe Marmont Lobo  
More Details

Surge em resultado das lições universitárias de Nanotecnologia proferidas pelo autor, desde 1998, e que têm vindo a ser progressivamente actualizadas, tentando acompanhar o espantoso desenvolvimento desta área científico-tecnológica, e visando simultaneamente colmatar uma lacuna de bibliografia em português sobre esta temática.
Este primeiro volume, de uma série de outros volumes do autor, que oportunamente se seguirão, apresenta os princípios físicos que formam a base da ciência à nano-escala, a par de imagens e diagramas que melhor ilustram este intuito.
Incluem-se ainda explicações intuitivas de modo a motivar a leitura por parte de estudantes, professores e também facilitar o acesso a um público interessado com formação científica em áreas mais abrangentes.

9725922670
Nomenclatura dos Compostos Orgânicos Luís Campos, Miguel Mourato  
More Details

Com esta segunda edição do livro "Nomenclatura dos Compostos Orgânicos" pretendeu-se apenas corrigir algumas gralhas existentes na 1ª edição, nomeadamente ao nível das estruturas quimícas. Agradecemos a todos os professores e alunos que ajudaram a detectar muitas dessas sempre desagradáveis gralhas. Infelizmente, entre a data de saída da primeira edição e da segunda ocorreu o falecimento de um dos autores, o Professor Luís Campos, o principal mentor deste projecto. Esta edição é assim inteiramente dedicada à memória do Professor Luís Campos, que, com o rigor ciêntifico que o caracterizou, sempre se preocupou com o, por vezes negligenciado, aspecto da normalização da linguagem básica da química orgânica, harmonizando tanto o ponto de vista ciêntifico como o ponto de vista linguístico.

9725921496
Numerical Methods for Engineers Steven C. Chapra, Raymond P. Canale  
More Details

Overview
The fifth edition of Numerical Methods for Engineers continues its tradition of excellence. Instructors love this text because it is a comprehensive text that is easy to teach from. Students love it because it is written for them—with great pedagogy and clear explanations and examples throughout. The text features a broad array of applications, including all engineering disciplines.
The revision retains the successful pedagogy of the prior editions. Chapra and Canale's unique approach opens each part of the text with sections called Motivation, Mathematical Background, and Orientation, preparing the student for what is to come in a motivating and engaging manner. Each part closes with an Epilogue containing sections called Trade-Offs, Important Relationships and Formulas, and Advanced Methods and Additional References. Much more than a summary, the Epilogue deepens understanding of what has been learned and provides a peek into more advanced methods. Users will find use of software packages, specifically MATLAB and Excel with VBA. This includes material on developing MATLAB m-files and VBA macros.
Approximately 80% of the problems are new or revised for this edition. The expanded breadth of engineering disciplines covered is especially evident in the problems, which now cover such areas as biotechnology and biomedical engineering.
Table of contents
Part 1 Modeling, Computers, and Error Analysis 
1 Mathematical Modeling and Engineering Problem Solving 
2 Programming and Software 
3 Approximations and Round-Off Errors 
4 Truncation Errors and the Taylor Series 
Part 2 Roots of Equations 
5 Bracketing Methods 
6 Open Methods 
7 Roots of Polynomials 
8 Case Studies: Roots of Equations 
Part 3 Linear Algebraic Equations 
9 Gauss Elimination 
10 LU Decomposition and Matrix Inversion 
11 Special Matrices and Gauss-Seidel 
12 Case Studies: Linear Algebraic Equations 
Part 4 Optimization 
13 One-Dimensional Unconstrained Optimization 
14 Multidimensional Unconstrained Optimization 
15 Constrained Optimization 
16 Case Studies: Optimization 
Part 5 Curve Fitting 
17 Least-Squares Regression 
18 Interpolation 
19 Fourier Approximation 
20 Case Studies: Curve Fitting 
Part 6 Numerical Differentiation and Integration 
21 Newton-Cotes Integration Formulas 
22 Integration of Equations 
23 Numerical Differentiation 
24 Case Studies: Numerical Integration and Differentiation 
Part 7 Ordinary Differential Equations 
25 Runge-Kutta Methods 
26 Stiffness and Multistep Methods 
27 Boundary-Value and Eigenvalue Problems 
28 Case Studies: Ordinary Differential Equations 
Part 8 Partial Differential Equations 
29 Finite Difference: Elliptic Equations 
30 Finite Difference: Parabolic Equations 
31 Finite-Element Method 
32 Case Studies: Partial Differential Equations 
Appendix A The Fourier Series 
Appendix B Getting Started with Matlab 
Bibliography 
Index

0071244298
Óptica Eugene Hecht  
More Details

Esta nova edição constitui uma actualização e modernização significativa da anterior, como o autor frisa no seu Prefácio. A tradução procurou não só seguir o texto mas também minimizar uma certa heterogeneidade de estilos da edição anterior, que se deveu à participação de muitos colaboradores - o que não aconteceu desta vez.
Introduzi agora dois conceitos que na anterior edição tinha contornado: os fasores e as ôndulas. Os fasores vêm substituir toda uma construção elaborada sobre amplitudes complexas; são utilizados normalmente em engenharia e não se justifica mais atrasar a sua introdução na obra. As ôndulas são introduzidas para traduzir wavelets, essencialmente no contexto dos princípios de Huygens e de Huygens-Fresnel, substituindo com vantagem construções baseadas em ondas secundárias, e ganhando perante traduções possíveis - tais como "ondículas" ou mesmo "ondeletas" - que não ultrapassaram a barreira dos meus pressupostos e preferências. …

José Manuel Rebordão (tradutor)

9723109670
Physical Fluid Dynamics D. J. Tritton  
More Details

This book presents the physics of incompressible flow for the benefit of students and others who need to understand fluid motion. In this new edition, much of the material is new or rewritten, but the purpose and style of the first edition are retained. Particular emphasis is given to information obtained by experiment and observation in addition to analysis of the equations of motion. The book's primary concern is to convey a fundamental understanding of the behavior of fluids in motion. Special features include an introductory non-mathematical treatment of three particular flow configurations; extensive consideration of geophysical topics; and detailed coverage of topics that are known primarily through experimental data. Numerous photographs illustrate the phenomena discussed, and a concluding chapter demonstrates the wide applicability of fluid mechanics. New topics in the second edition include double diffusive convection and modern ideas about dynamical chaos. The discussion of instabilities has been restructured and the treatments of separation and of convection in horizontal layers considerably expanded.

0198544936
The Physics of Vibrations and Waves, 5th Edition H. J. Pain  
More Details

The main theme of this best-selling book is that the transmission of energy by wave propagation is fundamental to almost every branch of physics. Therefore, besides giving students a thorough grounding in the theory of wave and vibrations, the book also demonstrates the pattern and unity of a large part of physics. This new edition has been thoroughly revised with the help of Professor Lyle Roelofs of Haverford College, USA. As with earlier editions, there are large numbers of problems together with hints on how to solve them.

0471985430
Physics, 4th Edition, Vol.1 Robert Resnick, David Halliday, Kenneth S. Krane  
More Details

Presents a complete, accurate and rigorous study of physics while bringing it forward into the '90s and beyond. The Fourth Edition of volumes 1 and 2 is concerned with mechanics and E&M/Optics. New features include: expanded coverage of classic physics topics, substantial increases in the number of in-text examples which reinforce text exposition, the latest pedagogical and technical advances in the field, numerical analysis, computer-generated graphics, computer projects and much more.

0471804584
Physics: Classical and Modern W.Edward Gettys  
More Details

Designed for a calculus-based introductory course for engineers and scientists, this second edition retains its student oriented, specific-to-general approach which provides clear, easily understood presentations of difficult and complex materials, and uses models frequently to help explain difficult concepts. It retains its early treatment of Newton's law of gravitation and continues to feature problems where numerical methods may be used. An emphasis on problem solving and developing problem-solving strategies is supported by an abundance of solved examples, numerous end-of-chapter questions, and a 20% increase in exercises and problems. New Self-Tests with answers follow every example providing instant reinforcement for the student working through the examples. Ten modern physics highlight boxes introduce students early in the course to the excitement of modern physics supplementing the end-of-chapter commentaries retained from the first edition, and a new chapter on astrophysics augments the modern physics section. A new four colour design, over 200 additional photographs, and redesigned line art enhance student learning and complement this clearly and precisely written text.Also available are a study guide, instructor's manual/test bank (0-07-033717-9), instructor's solutions manual and OHT's (0-07-074511-0).

0071126740