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Getting distance between two points based on latitude/longitude

...n, cos, sqrt, atan2, radians # approximate radius of earth in km R = 6373.0 lat1 = radians(52.2296756) lon1 = radians(21.0122287) lat2 = radians(52.406374) lon2 = radians(16.9251681) dlon = lon2 - lon1 dlat = lat2 - lat1 a = sin(dlat / 2)**2 + cos(lat1) * cos(lat2) * sin(dlon / 2)**2 c = 2 * ata...
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How to succinctly write a formula with many variables from a data frame?

... 209 There is a special identifier that one can use in a formula to mean all the variables, it is th...
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How do I enable EF migrations for multiple contexts to separate databases?

How do I enable Entity Framework 5 (version 5.0.0) migrations for multiple DB contexts in the same project, where each context corresponds to its own database? When I run Enable-Migrations in the PM console (Visual Studio 2012), there's an error because of there being multiple contexts: ...
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iOS: UIButton resize according to text length

... 0 In Xcode 4.5 and above, this can now be done by using 'Auto-layouting / Constraints'. Major adv...
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Getting the ID of the element that fired an event

... Jack Bashford 37.2k1010 gold badges3535 silver badges5959 bronze badges answered Sep 7 '08 at 19:02 samjudsonsamjudson ...
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Stacking Divs from Bottom to Top

...n) .wrapper { display: table-cell; vertical-align: bottom; height: 200px; } .content { max-height: 200px; overflow: auto; } html <div class="wrapper"> <div class="content"> <div>row 1</div> <div>row 2</div> <div>row 3</div&g...
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How to use HttpWebRequest (.NET) asynchronously?

... | edited Oct 27 '10 at 20:12 answered Oct 14 '08 at 21:17 ...
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Use Font Awesome Icons in CSS

... font-family: FontAwesome; left:-5px; position:absolute; top:0; } EDIT: Font Awesome v5 uses other font names than older versions: For FontAwesome v5, Free Version, use: font-family: "Font Awesome 5 Free" For FontAwesome v5, Pro Version, use: font-family: "Font Awesome 5 Pro" N...
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How do I convert this list of dictionaries to a csv file?

... 302 import csv toCSV = [{'name':'bob','age':25,'weight':200}, {'name':'jim','age':31,'weig...
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How to execute a JavaScript function when I have its name as a string

...es = functionName.split("."); var func = namespaces.pop(); for(var i = 0; i < namespaces.length; i++) { context = context[namespaces[i]]; } return context[func].apply(context, args); } You would call it like so: executeFunctionByName("My.Namespace.functionName", window, arguments);...