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How can I determine whether a 2D Point is within a Polygon?

...s after all), but macOS for example uses float for everything. macOS only knows points and a point can translate to one pixel, but depending on monitor resolution, it might translate to something else. On retina screens half a point (0.5/0.5) is pixel. Still, I never noticed that macOS UIs are signi...
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generate model using user:references vs user_id:integer

... how does rails know that user_id is a foreign key referencing user? Rails itself does not know that user_id is a foreign key referencing user. In the first command rails generate model Micropost user_id:integer it only adds a column user_i...
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Use CSS3 transitions with gradient backgrounds

...radient transitions with un-prefixed new syntax [e.g. radial-gradient(...)]now confirmed to work (again?) on Microsoft Edge 17.17134. I don't know when this was added. Still not working on latest Firefox & Chrome / Windows 10. ...
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How to convert an NSString into an NSNumber

...g. int , float , char , unsigned int , etc.)? The problem is, I don't know which number type the string will contain at runtime. ...
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“Large data” work flows using pandas

... store.append(g, frame, index=False, data_columns = v['dc']) Now you have all of the tables in the file (actually you could store them in separate files if you wish, you would prob have to add the filename to the group_map, but probably this isn't necessary). This is how you get colum...
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Using MemoryStore in production

... sessionStore.get(sessions[i], function() {} ); } }); } Now just call sessionCleanup periodically via setInterval() and you have automatic garbage collection for expired sessions. No more memory leaks. sha...
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How to correctly save instance state of Fragments in back stack?

...e also been coding my apps with this expected behavior for quite some time now. – Ricardo Mar 28 '15 at 23:32 1 ...
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Can't pickle when using multiprocessing Pool.map()

... have progressed some way, anyhow: Using the code at pastebin.ca/1693348 I now get a RuntimeError: maximum recursion depth exceeded. I looked around and one forum post recommended increasing the maximum depth to 1500 (from the default 1000) but I had no joy there. To be honest, I can't see what part...
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Container-fluid vs .container

... @JKillian As many themes nowadays, they always have 2 layouts: Boxed and wide layout. Hope you can understand what I explaining. Sorry for bad english. – Hung PD Oct 28 '14 at 17:46 ...
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SourceKitService Terminated

...loyment target from 7.0 to 7.1 and that seems to have solved the issue for now. – Nick Aug 7 '14 at 1:43 Setting the d...