O'Reilly Answers

By odewahn1  | 10 May 2010 - 12:00 PM | 1 Reply

Stereoscopy is a technique for creating the illusion of depth in a 2D image. While the specifics vary, the general principle is that two images are taken of the same scene, but at slight offsets of ...

By macslocum  | 02 March 2010 - 06:00 AM | 2 Replies

Android has taken big steps over the last year. What began as a promising but little-implemented operating system has matured into a strong OS powering a slew of mobile devices. It's also coming to ta...

If not, you're missing the boat! mod_rewrite is a tool which uses regular expressions to match strings available in Apache's variables. The effect it has on serving files based on it...

By BonnieB  | 20 November 2010 - 04:27 AM | 0 Replies

If you have a single-user license for QuickBooks, installing or upgrading the program on a computer running Windows 7 or Windows XP is incredibly simple. Even on a network with a multi-user license, i...

By JonUdell  | 26 October 2010 - 09:02 AM | 1 Reply

Introduction In this week's companion article on the Radar blog, I discuss a feature of the elmcity service that enables curators to find web pages that mention recurring events. The elmcity serv...

By mike-loukides  | 18 October 2010 - 11:42 AM | 5 Replies

These tips on battery life were written with Android in mind, but they apply to most smart phones. Keep Wi-Fi off unless you need it. This is admittedly a pain. But Wi-Fi makes a big difference.If th...

By blackbear  | 21 June 2010 - 05:56 AM | 9 Replies

One of the more useful (from a developer standpoint) features coming in iOS 4 (formerly iPhone OS 4) is the UIAutomation tool. This lets you run an automated set of tests against an application, and ...

By BonnieB  | 18 November 2010 - 12:22 AM | 0 Replies

Once your payroll setup is complete, generating payroll checks each pay period takes only a few minutes. But before you run payroll, you need up-to-date tax tables, as described below. This section ex...

By chco  | 17 November 2010 - 10:29 AM | 0 Replies

This screencast will show you how to easily straighten the horizon in a photo using Photoshop Elements 9. The content in this screencast is from Photoshop Elements 9: The Missing Manual. Learn m...

Five Tips for Python By Paul Barry, author of Head First Python, publishing Nov. 17 (O'Reilly Media; $49.99 USD). 1. Don't work too hard--let Python do the work for you. When programmer...