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How do write IF ELSE statement in a MySQL query
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edited Sep 15 '14 at 11:59
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answered Jan 6 '12 at 19:32
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Why does 2 mod 4 = 2?
...Mod just means you take the remainder after performing the division. Since 4 goes into 2 zero times, you end up with a remainder of 2.
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Replace specific characters within strings
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410
With a regular expression and the function gsub():
group <- c("12357e", "12575e", "197e18"...
Maintaining the final state at end of a CSS3 animation
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Remove data.frame row names when using xtable
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\hline
am & cyl & mpg & hp & wt \\
\hline
0.00 & 4.00 & 22.90 & 84.67 & 2.94 \\
0.00 & 6.00 & 19.12 & 115.25 & 3.39 \\
0.00 & 8.00 & 15.05 & 194.17 & 4.10 \\
1.00 & 4.00 & 28.07 & 81.88 & 2.04 \\
1.00 &...
Why is a round-trip conversion via a string not safe for a double?
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*dst = 0;
}
}
It turns out that _ecvt returns the string 845512408225570.
Notice the trailing zero? It turns out that makes all the difference!
When the zero is present, the result actually parses back to 0.84551240822557006, which is your original number -- so it compares equal, a...
Using async/await for multiple tasks
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int[] ids = new[] { 1, 2, 3, 4, 5 };
Parallel.ForEach(ids, i => DoSomething(1, i, blogClient).Wait());
Although you run the operations in parallel with the above code, this code blocks each thread that each operation runs on. For example, if the net...
Could not find com.google.android.gms:play-services:3.1.59 3.2.25 4.0.30 4.1.32 4.2.40 4.2.42 4.3.23
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https://plus.google.com/+AndroidDevelopers/posts/4Yhpn6p9icf
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Objective-C - Remove last character from string
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