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Datatype for storing ip address in SQL Server
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The technically correct way to store IPv4 is binary(4), since that is what it actually is (no, n...
How to normalize an array in NumPy?
...mpy as np
from sklearn.preprocessing import normalize
x = np.random.rand(1000)*10
norm1 = x / np.linalg.norm(x)
norm2 = normalize(x[:,np.newaxis], axis=0).ravel()
print np.all(norm1 == norm2)
# True
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Is there a way to measure how sorted a list is?
...onsider the example sequence 9, 5, 7, 6. This sequence has the inversions (0,1), (0,2), (0,3), (2,3) and the inversion number 4.
If you want a value between 0 and 1, you can divide the inversion number by N choose 2.
To actually create an algorithm to compute this score for how sorted a list is, you...
How do you use NSAttributedString?
...DK 3.2 (or around 3.2) and is available on the iPhone as of iPhone SDK 4.0 beta .
15 Answers
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vs2008编译boost详细步骤 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
vs2008编译boost详细步骤【一、Boost库的介绍】Boost库是一个经过千锤百炼、可移植、提供源代码的C++库，作为标准库的后备，是C++标准化进程的发动机之一。 Boost库由C++标准委员会库工作组成员发起，其 【一、Boost库的介绍】
Bo...
How to find the sum of an array of numbers
... how can I find the sum of its elements? (In this case, the sum would be 10 .)
43 Answers
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Getting Java version at runtime
...nical Articles
J2SE SDK/JRE Version String Naming Convention
Version 1.5.0 or 5.0?
"J2SE also keeps the version number 1.5.0 (or 1.5) in some places that are visible only to developers, or where the version number is parsed by programs"
"java.version system property"
Version 1.6.0 Used by De...
Easy pretty printing of floats in python?
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As noone has added it, it should be noted that going forward from Python 2.6+ the recommended w...
Why is January month 0 in Java Calendar?
In java.util.Calendar , January is defined as month 0, not month 1. Is there any specific reason to that ?
16 Answers
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