In Hacker's Delight, Second Edition, Hank Warren once again compiles an irresistible collection of programming hacks: timesaving techniques, algorithms, and tricks that help programmers build more elegant and efficient software, while also gaining deeper insights into their craft. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. Extensive additions in this edition include * A new chapter on cyclic redundancy checking (CRC), including routines for the commonly used CRC-32 code * A new chapter on error correcting codes (ECC), including routines for the Hamming code * More coverage of integer division by constants, including methods using only shifts and adds * Computing remainders without computing a quotient * More coverage of population count and counting leading zeros * Array population count * New algorithms for compress and expand * An LRU algorithm * Floating-point to/from integer conversions * Approximate floating-point reciprocal square root routine * A gallery of graphs of discrete functions * Now with exercises and answers

In Hacker's Delight, Second Edition, Hank Warren once again compiles an irresistible collection of programming hacks: timesaving techniques, algorithms, and tricks that help programmers build more elegant and efficient software, while also gaining deeper insights into their craft. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. Extensive additions in this edition include * A new chapter on cyclic redundancy checking (CRC), including routines for the commonly used CRC-32 code * A new chapter on error correcting codes (ECC), including routines for the Hamming code * More coverage of integer division by constants, including methods using only shifts and adds * Computing remainders without computing a quotient * More coverage of population count and counting leading zeros * Array population count * New algorithms for compress and expand * An LRU algorithm * Floating-point to/from integer conversions * Approximate floating-point reciprocal square root routine * A gallery of graphs of discrete functions * Now with exercises and answers

Now that storage and collection technologies are cheaper and more precise, methods for extracting relevant information from large datasets is within the reach any experienced programmer willing to crunch data. With this book, you'll learn machine learning and statistics tools in a practical fashion, using black-box solutions and case studies instead of a traditional math-heavy presentation. By exploring each problem in this book in depth - including both viable and hopeless approaches - you'll learn to recognize when your situation closely matches traditional problems. Then you'll discover how to apply classical statistics tools to your problem. Machine Learning for Hackers is ideal for programmers from private, public, and academic sectors.

The ability to interpret and act on the massive amounts of information locked in web and enterprise systems is critical to success in the modern business economy. R, a free software environment for statistical computing and graphics, is a comprehensive package that empowers developers and analysts to capture, process, and respond intelligently to statistical information. R in Action is the first book to present both the R system and the use cases that make it such a compelling package for business developers. The book begins by introducing the R language, and then moves on to various examples illustrating R's features. Coverage includes data mining methodologies, approaches to messy data, R's extensive graphical environment, useful add-on modules, and how to interface R with other software platforms and data management systems.

一本老少咸宜的编程入门奇书！一册在手，你完全可以带着自己的孩子，跟随Sande父子组合在轻松的氛围中熟悉那些编程概念，如内存、循环、输入和输出、数据结构和图形用户界面等。这些知识一点儿也不高深，听起来备感亲切，书中言语幽默风趣而不失真义，让学习过程充满乐趣。细心的作者还配上了孩子们都喜欢的可爱漫画和经过运行测试的程序示例，教你用最易编写和最易理解的Python语言，写出你梦想中的游戏程序。 “Hello, World!我来了！”编程乐趣无穷，起点就在脚下，请引导你的孩子走进这奇妙的世界。无论是中小学生还是其他初学者，都可以跟随本书学习Python编程，并过渡到任何其他语言，重要的是你将学会思考问题和解决问题的方法。

《程序员实用算法》重点关注的是实用、立即可用的代码，并且广泛讨论了可移植性和特定于实现的细节。《程序员实用算法》作者介绍了一些有用但很少被讨论的算法，它们可用于语音查找、日期和时间例程（直到公元1年）、B树和索引文件、数据压缩、任意精度的算术、校验和与数据验证，并且还最全面地介绍了查找例程、排序算法和数据结构。 《程序员实用算法》结构清晰，示例丰富，可作为广大程序员的参考用书。

这是一本关于计算信息设计的书籍。从如何获取原始数据开始，到如何理解原始数据，本书都作了非常详尽的介绍。书中使用由作者开发的开源编程环境Processing编程，它非常简单易用。对于熟悉Java的程序员来说，本书后面的章节还介绍了如何将Processing和Java结合使用。 本书是写给那些拥有一个数据集合，好奇如何探索它，并且考虑如何交流这些数据的人们的。随着我们处理越来越多的信息，需要可视化数据的人的数量增长非常迅速。更重要的是，读者已经超越了某些可视化领域的专家。通过让更大范围的人接触到可视化思想，在接下来的几十年中应该可以看到一些真正让人惊叹的成果。

本书是计算机科学方面的经典名著《编程珠玑》的姊妹篇，讲述了对于程序员有共性的知识。书中涵盖了程序员操纵程序的技术、程序员取舍的技巧、输入和输出设计以及算法示例，这些内容结合成一个有机的整体，如一串串珠玑展示给程序员。本书适合各级程序员阅读参考。... 【媒体评论】 “《编程珠玑》第1版是对我职业生涯早期影响最大的书之一，其中的许多真知灼见多年之后仍然使我受益匪浅。Jon在第2版中对素材进行了大量更新，许多新内容让我耳目一新。”. ——Steve McConnell，软件工程大师，IEEE Software前主编，《代码大全》作者 “对每一位遇到的程序员，我都会毫不迟疑地建议他阅读并不断重读这部经典之作。”... ——Slashdot

Improve your programming through a solid understanding of C pointers and memory management. With this practical book, you'll learn how pointers provide the mechanism to dynamically manipulate memory, enhance support for data structures, and enable access to hardware. Author Richard Reese shows you how to use pointers with arrays, strings, structures, and functions, using memory models throughout the book. Difficult to master, pointers provide C with much flexibility and power - yet few resources are dedicated to this data type. This comprehensive book has the information you need, whether you're a beginner or an experienced C or C++ programmer or developer. Get an introduction to pointers, including the declaration of different pointer types Learn about dynamic memory allocation, de-allocation, and alternative memory management techniques Use techniques for passing or returning data to and from functions Understand the fundamental aspects of arrays as they relate to pointers Explore the basics of strings and how pointers are used to support them Examine why pointers can be the source of security problems, such as buffer overflow Learn several pointer techniques, such as the use of opaque pointers, bounded pointers and, the restrict keyword

Starting from first principles, this book covers all of the foundational material needed to develop a clear understanding of the Mathematica language, with a practical emphasis on solving problems. Concrete examples throughout the text demonstrate how Mathematica can be used to solve problems in science, engineering, economics/finance, computational linguistics, geoscience, bioinformatics, and a range of other fields. The book will appeal to students, researchers and programmers wishing to further their understanding of Mathematica. Designed to suit users of any ability, it assumes no formal knowledge of programming so it is ideal for self-study. Over 290 exercises are provided to challenge the reader's understanding of the material covered and these provide ample opportunity to practice using the language. Mathematica notebooks containing examples, programs and solutions to exercises are available from www.cambridge.org/wellin.

R is rapidly becoming the standard for developing statistical software, and R in a Nutshell provides a quick and practical way to learn this increasingly popular open source language and environment. You'll not only learn how to program in R, but also how to find the right user-contributed R packages for statistical modeling, visualization, and bioinformatics.

《大学计算机教育国外著名教材系列:算法设计(影印版)》是近年来关于算法设计和分析的不可多得的优秀教材。《大学计算机教育国外著名教材系列:算法设计(影印版)》围绕算法设计技术组织素材，对每种算法技术选择了多个典型范例进行分析。《大学计算机教育国外著名教材系列:算法设计(影印版)》将直观性与严谨性完美地结合起来。每章从实际问题出发，经过具体、深入、细致的分析，自然且富有启发性地引出相应的算法设计思想，并对算法的正确性、复杂性进行恰当的分析、论证。《大学计算机教育国外著名教材系列:算法设计(影印版)》覆盖的面较宽，凡属串行算法的经典论题都有涉及，并且论述深入有新意。全书共200多道丰富而精彩的习题是《大学计算机教育国外著名教材系列:算法设计(影印版)》的重要组成部分，也是《大学计算机教育国外著名教材系列:算法设计(影印版)》的突出特色之一。

本书适合程序库、编译器开发者及追求优美程序设计的人员阅读，适合用作计算机专业高年级学生及研究生的参考用书。　　本书直观明了地讲述了计算机算术的更深层次的、更隐秘的技术，汇集了各种编辑的小技巧，包括常购的任务的小算法，2的幂边界和边界检测、位和字节的重排列、整数除法和常量除法、针对整数的基涵义，空间填充曲线、素数公式等。

本书介绍如何用Python开发科学计算的应用程序，除了介绍数值计算之外，还着重介绍如何制作交互式的2D、3D图像，如何设计精巧的程序界面，如何与C语言编写的高速计算程序结合，如何编写声音、图像处理算法等内容。书中涉及的Python扩展库包括NumPy、SciPy、SymPy、matplotlib、Traits、TraitsUI、Chaco、TVTK、Mayavi、VPython、OpenCV等，涉及的应用领域包括数值运算、符号运算、二维图表、三维数据可视化、三维动画演示、图像处理以及界面设计等。 书中以大量实例引导读者逐步深入学习，每个实例程序都有详尽的解释，并都能在本书推荐的运行环境中正常运行。此外，本书附有大量的图表和插图，力求减少长篇的理论介绍和公式推导，以便读者通过实例和数据学习并掌握理论知识。

Covering the basic techniques used in the latest research work, the author consolidates progress made so far, including some very recent and promising results, and conveys the beauty and excitement of work in the field. He gives clear, lucid explanations of key results and ideas, with intuitive proofs, and provides critical examples and numerous illustrations to help elucidate the algorithms. Many of the results presented have been simplified and new insights provided. Of interest to theoretical computer scientists, operations researchers, and discrete mathematicians.

创造稳定的软件需要有效的算法，但是程序设计者们很少能在问题出现之前就想到。《算法技术手册(影印版)》描述了现有的可以解决多种问题的算法，并且能够帮助你根据需求选择并实现正确的算法——只需要一定的数学知识即可理解并分析算法执行。相对于理论来说，本书更注重实际运用，书中提供了多种程序语言中可用的有效代码解决方案，可轻而易举地适合一个特定的项目。有了这本书，你可以： 解决特定编码问题或改进现有解决方案的执行； 迅速确定与需要解决的问题相关的算法，并判定为什么这样的算法是正确的； 探索C、C++、Java、Ruby中的算法解决方案，伴有实现诀窍； 了解一个算法预期的执行情况及最佳的执行条件； 发现不同算法中相似设计产生的冲突； 学习先进的数据结构以改进算法效率。 有了《算法技术手册》，你可以学习如何改进算法的性能，这是软件应用成功的关键。

Data science libraries, frameworks, modules, and toolkits are great for doing data science, but they’re also a good way to dive into the discipline without actually understanding data science. In this book, you’ll learn how many of the most fundamental data science tools and algorithms work by implementing them from scratch. If you have an aptitude for mathematics and some programming skills, author Joel Grus will help you get comfortable with the math and statistics at the core of data science, and with hacking skills you need to get started as a data scientist. Today’s messy glut of data holds answers to questions no one’s even thought to ask. This book provides you with the know-how to dig those answers out. Get a crash course in Python Learn the basics of linear algebra, statistics, and probability—and understand how and when they're used in data science Collect, explore, clean, munge, and manipulate data Dive into the fundamentals of machine learning Implement models such as k-nearest Neighbors, Naive Bayes, linear and logistic regression, decision trees, neural networks, and clustering Explore recommender systems, natural language processing, network analysis, MapReduce, and databases