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...要买啥。在经济学中，有一个著名理论叫长尾理论（The Long Tail）。
套用在互联网领域中，指的就是最热的那一小部分资源将得到绝大部分的关注，而剩下的很大一部分资源却鲜少有人问津。这不仅造成了资源利用上的浪费，...
Expert R users, what's in your .Rprofile? [closed]
I have always found startup profile files of other people both useful and instructive about the language. Moreover, while I have some customization for Bash and Vim , I have nothing for R.
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How do I get the application exit code from a Windows command line?
I am running a program and want to see what its return code is (since it returns different codes based on different errors).
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What is the fastest integer division supporting division by zero no matter what the result is?
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How do I use extern to share variables between source files?
I know that global variables in C sometimes have the extern keyword. What is an extern variable? What is the declaration like? What is its scope?
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How to trim whitespace from a Bash variable?
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FFmpeg: How to split video efficiently?
I wish to split a large avi video into two smaller consecutive videos. I am using ffmpeg.
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Gradient of n colors ranging from color 1 and color 2
I often work with ggplot2 that makes gradients nice ( click here for an example ). I have a need to work in base and I think scales can be used there to create color gradients as well but I'm severely off the mark on how. The basic goal is generate a palette of n colors that ranges from x colo...
Obfuscated C Code Contest 2006. Please explain sykes2.c
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