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How to map atan2() to degrees 0-360
atan2(y, x) has that discontinuity at 180° where it switches to -180°..0° going clockwise.
15 Answers
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Specifying rails version to use when creating a new application
I have two versions of rails (2.1.0 and 2.2.2) installed in my computer.
7 Answers
7
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Email Address Validation in Android on EditText [duplicate]
...target).
– rciovati
Apr 13 '13 at 9:02
20
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How do you uninstall MySQL from Mac OS X?
...ic guide to installing under Mac OS X which builds MySQL from source. When setting up the build you can specify a directory under which to install MySQL with the --prefix parameter. You should make sure the directory does not exist and attempt to install from source.
./configure --prefix=/usr/local...
What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
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For .Net <= 4.0 Use the TimeSpan class.
TimeSpan t = TimeSpan.FromSeconds( secs );
string answer = string.Format("{0:D2}h:{1:D2}m:{2:D2}s:{3:D3}ms",
t.Hours,
t.Minutes,
t.Seconds,
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How can I get the client's IP address in ASP.NET MVC?
...e
{
szIP = szXForwardedFor;
if (szIP.IndexOf(",") > 0)
{
string [] arIPs = szIP.Split(',');
foreach (string item in arIPs)
{
if (!isPrivateIP(item))
{
return item;
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Xcode stuck on Indexing
...ues and you're this far down the page!
Try adding this flag to your build settings.
-Xfrontend -warn-long-expression-type-checking=400
It will cause warning where the compiler take a long time to deduce a complex expression.
This may cause a build error which will go away after you find the ...
Disable click outside of bootstrap modal area to close modal
... At first, using js version didn't work for me too because I was setting everything after I opened the modal. You should do this "$('#modalForm').modal({ backdrop: 'static', keyboard: false });" before this "$('#modalForm').modal('show');". But for me, the best answer is from @ಅನಿಲ...
Why does this go into an infinite loop?
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+500
Note: Originally I posted C# code in this answer for purposes of illustration, since C# allows you to pass int parameters by referenc...
Checking to see if one array's elements are in another array in PHP
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205
You can use array_intersect().
$result = !empty(array_intersect($people, $criminals));
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