Beginning Linux Programming

Understand the theory and implementation of simulation. This book covers simulation topics from a scenario-driven approach using Python and rich visualizations and tabulations. The book discusses simulation used in the natural and social sciences and with simulations taken from the top algorithms used in the industry today. The authors use an engaging approach that mixes mathematics and programming experiments with beginning-intermediate level Python code to create an immersive learning experience that is cohesive and integrated. After reading this book, you will have an understanding of simulation used in natural sciences, engineering, and social sciences using Python. What You Will LearnUse Python and numerical computation to demonstrate the power of simulationChoose a paradigm to run a simulationDraw statistical insights from numerical experimentsKnow how simulation is used to solve real-world problems Who This Book Is ForEntry-level to mid-level Python developers from various backg

• 本書英文版System Programming獲得美國最權威的書評機構Bookauthority的推薦，並評為最佳網路程式設計書籍。• 作者陳金追為電腦系統軟體世界級的專家！從事軟體研發三十幾年，曾為Oracle開發全新的資料庫復原系統。• 想成為世界級的電腦軟體專家，看本書就對了！本書有系統地介紹如何以POSIX標準所規定的作業系統程式界面，做跨平台的軟體開發，設計出一流軟體。上册第1-11章(系統程式設計)：• 靜態與動態連結，動態載入。程序管理。軟體開發與軟體工程過程。• 檔案輸入/輸出：循序I/O、隨機I/O、向量I/O、非同步I/O、直接I/O。• 程序間通信方法：信號、旗誌、共有記憶、插口、有名與無名導管、信息排隊、映入記憶器檔案。‎• Pthreads多程線程式設計：互斥鎖、條件變數、程線特有資料、修復吊死的互斥鎖、程線取消、生産消費問題。• 共時控制：更新遺失問題、系統五與POSIX旗誌。以組合語言撰寫自己的上鎖與解鎖函數，比系統所提供的任何共時控制設施，都快上25~80%的速度。如何預防鎖死。下冊第12-16章(網路程式設計)：• 網路插口程式設計：不同種類的插口、客戶伺服程式、連線與非連線式通信、同時支援IPv4與IPv6、多工式伺服程式、多播作業、非同步連線、自動重新再連線、查取端口號。• 插口選項：SO_KEEPALIVE、SO_LINGER、SO_REUSEADDR、SO_REUSEPORT 與緩衝器大小 。• 性能調整：如何分別在應用軟體與作業系統核心層次，調整網路插口程式的性能。• 分散式程式設計：如何解決跨印地(endian)、對位、32與64位元混合、永遠往後且往前相容、版本術、預防癱瘓攻撃。• 電腦網路安全：對稱式與不對稱式密碼術。撰寫從事信息紋摘、加密、解密、‎HMAC、數位簽字，‎以及SSL/TLS‎等作業的客戶伺服程式。PKI，如何產生並建立自簽的X.509憑証，如何做不‎同格式憑證的轉換，SSL/TLS 程式設計，如何在SSL/TLS作業時驗證一串的憑證，以及‎如何在SSL/TLS‎上‎做客戶認證等。• 如何設計一流軟體。• 書中200多個C範例程式，均在Linux、AIX、Solaris、HPUX、Apple Darwin上測試過。網路插口程式也在微軟Windows測試過。

Second edition of the best-selling Practical SQL. An approachable guide to programming in SQL (Structured Query Language) that will teach even beginning programmers how to build powerful databases and analyze data to find meaningful information. Practical SQL is an approachable and fast-paced guide to SQL (Structured Query Language) written by longtime professional journalist Anthony DeBarros. SQL is the primary tool that programmers, web developers, researchers, journalists, and others use to explore data in a database. DeBarros focuses on using SQL to find the story in data, with the aid of the popular open-source database PostgreSQL and the pgAdmin interface. This thoroughly revised second edition includes a new chapter describing how to set up PostgreSQL and more extensive discussion of pgAdmin's best features. The author has also added a chapter on the JSON data format that shows readers how to store and query JSON data. DeBarros has also updated the data in the book throughout, a