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Get the distance between two geo points
...ction centered on the master point, so you can compute the cosine once for all comparisons).
For more info see: http://www.movable-type.co.uk/scripts/latlong.html
There is a nice reference implementation of the Haversine formula in several languages at: http://www.codecodex.com/wiki/Calculate_Dis...
How to debug Spring Boot application with Eclipse?
... to get this working, I used Maven.
Ensure you have the Maven plugin installed into Eclipse.
Click Run > Run Configurations > Maven Build > new launch configuration:
Base directory: browse to the root of your project
Goals: spring-boot::run.
Click Apply then click Run.
NB. If your ID...
How should I use Outlook to send code snippets?
...)
Pattern: Clear (Custom Color(RGB(253,253,217))), Style: Linked, Automatically update, Quick Style
Based on: HTML Preformatted
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Correct format specifier for double in printf
...).
Note that this is one place that printf format strings differ substantially from scanf (and fscanf, etc.) format strings. For output, you're passing a value, which will be promoted from float to double when passed as a variadic parameter. For input you're passing a pointer, which is not promoted...
Django: Get an object form the DB, or 'None' if nothing matches
...get(*args, **kwargs)
except model.DoesNotExist:
return None
Call it like this
foo = get_or_none(Foo, baz=bar)
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How do I see if Wi-Fi is connected on Android?
... does not
support multiple connected networks of the same type. Use
getAllNetworks() and getNetworkInfo(android.net.Network) instead.
NOTE3: public static final int TYPE_WIFI is now deprecated:
This constant was deprecated in API level 28.
Applications should instead use NetworkCapabilit...
How to set up a Subversion (SVN) server on GNU/Linux - Ubuntu [closed]
... would like to act as a Subversion server. Both for myself to commit to locally, and for others remotely. What are the steps required to get this working? Please include steps to:
...
Getting attribute using XPath
...
you can use:
(//@lang)[1]
these means you get all attributes nodes with name equal to "lang" and get the first one.
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Moving decimal places over in a double
...
which prints:
12.34
This works because Double.toString(d) performs a small amount of rounding on your behalf, but it is not much. If you are wondering what it might look like without rounding:
System.out.println(new BigDecimal(0.1));
System.out.println(new BigDecimal(x));
prints:
0.100000000...
img tag displays wrong orientation
... Why in the world do images even have orientation metadata? If you really wanted to rotate the picture then wouldn't you just shift around the pixels and swap the width for the height?
– Jack Giffin
Oct 29 '17 at 1:02
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