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“CASE” statement within “WHERE” clause in SQL Server 2008
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
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How to remove convexity defects in a Sudoku square?
...sk"}][[All,
2]];
largestComponent = Image[SortBy[components, First][[-1, 2]]]
By filling this image, I get a mask for the sudoku grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative filter to find the vertical and horizontal lines in two separate images...
Shell equality operators (=, ==, -eq)
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It's the other way around: = and == are for string comparisons, -eq is for numeric ones. -eq i...
C++/COM VARIANT实现二维数组 - C/C++ - 清泛网 - 专注C/C++及内核技术
...率。下面以两种不同方式来实现VARIANT二维数组的操作。
1、使用SAFEARRAY实现二维数组
SAFEARRAY安全数组可以实现多维数组，SAFEARRAY实现的步骤可以大致分为三步。
（1）创建SAFEARRAY安全数组，包括设置数组元素的类型、数据的维...
How to write the Fibonacci Sequence?
...nstead of returning the Fibonacci numbers between a range (ie. startNumber 1, endNumber 20 should = only those numbers between 1 & 20), I have written for the program to display all Fibonacci numbers between a range (ie. startNumber 1, endNumber 20 displays = First 20 Fibonacci numbers). I thought I...
Convert column classes in data.table
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For a single column:
dtnew <- dt[, Quarter:=as.character(Quarter)]
str(dtnew)
Classes ‘...
What are the main uses of yield(), and how does it differ from join() and interrupt()?
...ifferent from a non-zero sleep where the sleeping thread
generally loses 1 quantum value (in effect, 1/3 of a 10 or 15ms tick).
In Java 6, this behaviour was changed. The Hotspot VM now implements
Thread.yield() using the Windows SwitchToThread() API call. This call
makes the current thre...
How are the points in CSS specificity calculated
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Pekka's answer is practically correct, and probably the best way to think about the issue.
Ho...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
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