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Getting distance between two points based on latitude/longitude
...n Python, all the trig functions use radians, not degrees.
You can either convert the numbers manually to radians, or use the radians function from the math module:
from math import sin, cos, sqrt, atan2, radians
# approximate radius of earth in km
R = 6373.0
lat1 = radians(52.2296756)
lon1 = ra...
Selecting pandas column by location
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The method .transpose() converts columns to rows and rows to column, hence you could even write
df.transpose().ix[3]
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Parallel foreach with asynchronous lambda
...t;T>(this IEnumerable<T> source, Func<T, Task> asyncAction, int maxDegreeOfParallelism = 10)
{
var semaphoreSlim = new SemaphoreSlim(maxDegreeOfParallelism);
var tcs = new TaskCompletionSource<object>();
var exceptions = new ConcurrentBag<Exception...
.NET WPF Remember window size between sessions
...s going on. You need to add a bounds check using Window.GetScreen(), after converting the screen coordinates to DPI dependant values.
– Omer Raviv
May 25 '12 at 9:09
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Importing a GitHub project into Eclipse
...lso had to right-click on project > Properties > Project Facets > Convert to faceted form
– xtian
Sep 29 '15 at 9:49
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How to get the index of a maximum element in a numpy array along one axis
...e gives you results in the form that you asked for. Alternatively, you can convert to a list of x,y coordinates by:
x_y_coords = zip(indices[0], indices[1])
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How can I detect if this dictionary key exists in C#?
...ystem.Collections.Generic;
using System.Collections;
namespace Main
{
internal partial class Dictionary<TKey, TValue> : System.Collections.Generic.Dictionary<TKey, TValue>
{
internal new virtual void Add(TKey key, TValue value)
{
if (!base.Contains...
Implement paging (skip / take) functionality with this query
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New key words offset and fetch next (just following SQL standards) were introduced.
But I guess, that you are not using SQL Server 2012, right? In previous version it is a bit (little bit) difficult. Here is comparison and examples for all SQL server versions: here
So, this could work in SQL Se...
Should I add .vcxproj.filter files to source control?
While evaluating Visual Studio 2010 Beta 2, I see that in the converted directory, my vcproj files became vcxproj files. There are also vcxproj.filter files alongside each project which appear to contain a description of the folder structure (\Source Files, \Header Files, etc.).
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How can I check if the current date/time is past a set date/time?
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Check PHP's strtotime-function to convert your set date/time to a timestamp: http://php.net/manual/en/function.strtotime.php
If strtotime can't handle your date/time format correctly ("4:00PM" will probably work but not "at 4PM"), you'll need to use string-f...