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Reverse colormap in matplotlib

I would like to know how to simply reverse the color order of a given colormap in order to use it with plot_surface. 7 Answ...
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Can I set background image and opacity in the same property?

I can see in CSS references how to set image transparency and how to set a background image . But how can I combine these two in order to set a transparent background image? ...
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Generate random numbers with a given (numerical) distribution

I have a file with some probabilities for different values e.g.: 13 Answers 13 ...
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tinyxml XML解析库下载(tinyxml2.h 和 tinyxml2.cpp) - 源码下载 - 清泛...

...C++ 读写xml方法整理(持续更新)》 tinyxml2.h /* Original code by Lee Thomason (www.grinninglizard.com) This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this softwar...
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Fastest way to replace NAs in a large data.table

I have a large data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible. ...
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Define a lambda expression that raises an Exception

How can I write a lambda expression that's equivalent to: 6 Answers 6 ...
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CSS Font Border?

With all the new CSS3 border stuff going on ( -webkit , ...) is it now possible to add a border to your font? (Like the solid white border around the blue Twitter logo). If not, are there any not-too-ugly hacks that will accomplish this in CSS/XHTML or do I still need to fire up Photoshop? ...
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How should I validate an e-mail address?

What's a good technique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp? ...
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How to darken a background using CSS?

I have an element with text in it. Whenever I decrease the opacity, then I decrease the opacity of the WHOLE body. Is there any way I can just make the background-image darker, and not everything else? ...
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Regex to validate date format dd/mm/yyyy

I need to validate a date string for the format dd/mm/yyyy with a regular expresssion. 20 Answers ...