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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
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edited Mar 20 '15 at 1:27
answered Jun 19 '12 at 17:03
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Calculate difference in keys contained in two Python dictionaries
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21 Answers
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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术
...定制和延伸。目 录
1 引言... 1
1.1 目的... 1
1.2 参考资料... 1
2 Grid控件介绍... 1
2.1 功能介绍... 1
2.2 框架介绍... 2
2.3 主要类介绍... 4
2.3.1 CGridCtrl类... 4
2.3.2 CGridCellCheck类... 5
2.3.3 CGridCel...
Is log(n!) = Θ(n·log(n))?
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Remember that
log(n!) = log(1) + log(2) + ... + log(n-1) + log(n)
You can get the upper bound by
log(1) + log(2) + ... + log(n) <= log(n) + log(n) + ... + log(n)
= n*log(n)
And you can get the lower bound by doing a simil...
Why does Math.Round(2.5) return 2 instead of 3?
In C#, the result of Math.Round(2.5) is 2.
15 Answers
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What is the difference between '/' and '//' when used for division?
Is there a benefit to using one over the other? In Python 2, they both seem to return the same results:
13 Answers
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How do I represent a hextile/hex grid in memory?
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How to compare two strings in dot separated version format in Bash?
Is there any way to compare such strings on bash, e.g.: 2.4.5 and 2.8 and 2.4.5.1 ?
29 Answers
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how to draw smooth curve through N points using javascript HTML5 canvas?
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The problem with joining subsequent sample points together with disjoint "curveTo" type function...