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How do you calculate the average of a set of circular data? [closed]
...he Mathematical Sciences, 1983 John Wiley & Sons, Inc. as mentioned at http://catless.ncl.ac.uk/Risks/7.44.html#subj4 by Bruce Karsh.
A good way to estimate an average angle, A, from a set of angle measurements
a[i] 0<=i
sum_i_from_1_to_N sin(a[i])
a = arctangent --------...
How to see if an object is an array without using reflection?
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How can I merge properties of two JavaScript objects dynamically?
...
jQuery also has a utility for this: http://api.jquery.com/jQuery.extend/.
Taken from the jQuery documentation:
// Merge options object into settings object
var settings = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar"...
由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...个Web服务器上。这样可以减少Web服务器的请求负载。因为http的请求都是短作业，所以，可以通过很简单的负载均衡器来完成这一功能。最好是有CDN网络让用户连接与其最近的服务器（CDN通常伴随着分布式存储）。（关于负载均...
Is Dvorak typing appropriate for programming? [closed]
...
There are Dvorak layouts specifically for programming: http://www.kaufmann.no/roland/dvorak/
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Transitioning from Windows Forms to WPF
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ASP.NET MVC HandleError
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It should also be noted that errors that don't set the http error code to 500
(e.g. UnauthorizedAccessException)
will not be handled by the HandleError filter.
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“Inner exception” (with traceback) in Python?
...ext manager using that to catch and change your exception on the fly:
(see http://docs.python.org/3.1/library/stdtypes.html for expanation of how they work)
try: # Wrap the whole program into the block that will kill __context__.
class Catcher(Exception):
'''This context manager re...
How to benchmark efficiency of PHP script
...our test.
You can use:
jmeter
ApacheBench tool (see an example)
dbench
http_load
curl-loader
httperf
siege
vegeta
the code you use is good too but with a bigger loop (like 1,000,000)
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Multiple glibc libraries on a single host
...uch as crt1.o, crti.o, and crtn.o provided by glibc. This is mentioned at: https://sourceware.org/glibc/wiki/Testing/Builds?action=recall&rev=21#Compile_against_glibc_in_an_installed_location Those objects do early setup that glibc relies on, so I wouldn't be surprised if things crashed in wonde...