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If you're thinking about migrating to the PostgreSQL open source database system, this guide provides a concise overview to help you quickly understand and use PostgreSQL's unique features. Not only will you learn about the enterprise class features in the 9.2 release, you'll also discover that PostgeSQL is more than just a database system--it's also an impressive application platform. With numerous examples throughout this book, you'll learn how to achieve tasks that are difficult or impossible in other databases. If you're an existing PostgreSQL user, you'll pick up gems you may have missed along the way....

Postfix is a Mail Transfer Agent (MTA): software that mail servers use to route email. Postfix is highly respected by experts for its secure design and tremendous reliability. And new users like it because it's so simple to configure. In fact, Postfix has been adopted as the default MTA on Mac OS X. It is also compatible with sendmail, so that existing scripts and programs continue to work seamlessly after it is installed.Postfix was written by well-known security expert Wietse Venema, who reviewed this book intensively during its entire development. Author Kyle Dent covers a wide range of Postfix tasks, from virtual hosting to controls for unsolicited commercial email.While basic configuration of Postfix is easy, every site has unique needs that cal...

Colliding billiard balls. Missile trajectories. Cornering dynamics in speeding cars. By applying the laws of physics, you can realistically model nearly everything in games that bounces around, flies, rolls, slides, or isn't sitting still, to create compelling, believable content for computer games, simulations, and animation. Physics for Game Developers serves as the starting point for those who want to enrich games with physics-based realism.Part one is a mechanics primer that reviews basic concepts and addresses aspects of rigid body dynamics, including kinematics, force, and kinetics. Part two applies these concepts to specific real-world problems, such as projectiles, boats, airplanes, and cars. Part three introduces real-time simulations and sh...

The recent boom in digital camera sales has created a tremendous demand for simple yet powerful photo-editing software. This is because experienced users, as well as amateurs, are quickly outgrowing the program that was originally bundled with their cameras.Fortunately, Photoshop Elements 3, the latest photo-editing software from Adobe, is filling this void. It allows users to achieve high-quality results without the overwhelming complexity of professional-level software. And it's also affordable. As a result, it is the best-selling photo-editing software on the market today. Yet, while Photoshop Elements 3.0 seems to have everything going in its favor, it is missing one very important element: a manual that explains all of its incredible capabilitie...