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Why does Math.floor return a double?
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80
According to the same Javadoc:
If the argument is NaN or an infinity or positive zero or negati...
How to change letter spacing in a Textview?
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edited Sep 19 '17 at 0:19
Joaquin Iurchuk
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an...
Debugging iframes with Chrome developer tools
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answered Dec 20 '11 at 20:08
MetagrapherMetagrapher
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Intellij IDEA generate for-each/for keyboard shortcut
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answered Apr 3 '11 at 0:18
d-lived-live
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How do I test if a variable is a number in Bash?
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One approach is to use a regular expression, like so:
re='^[0-9]+$'
if ! [[ $yournumber =~ $re ]] ; then
echo "error: Not a number" >&2; exit 1
fi
If the value is not necessarily an integer, consider amending the regex appropriately; for instance:
^[0-9]+([.][0-9]+)?$
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Replace one character with another in Bash
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405
Use inline shell string replacement. Example:
foo=" "
# replace first blank only
bar=${foo/ ...
How to cancel a Task in await?
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Read up on Cancellation (which was introduced in .NET 4.0 and is largely unchanged since then) and the Task-Based Asynchronous Pattern, which provides guidelines on how to use CancellationToken with async methods.
To summarize, you pass a CancellationToken into each method that s...
Random Gaussian Variables
...rand = new Random(); //reuse this if you are generating many
double u1 = 1.0-rand.NextDouble(); //uniform(0,1] random doubles
double u2 = 1.0-rand.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2); //random normal(0,1)
double randNormal =...
How can I list ALL grants a user received?
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answered Aug 19 '09 at 17:09
DCookieDCookie
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How to list of all the tables defined for the database when using active record?
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answered Oct 1 '08 at 0:34
François BeausoleilFrançois Beausoleil
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