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How to scale down a range of numbers with a known min and max value

So I am trying to figure out how to take a range of numbers and scale the values down to fit a range. The reason for wanting to do this is that I am trying to draw ellipses in a java swing jpanel. I want the height and width of each ellipse to be in a range of say 1-30. I have methods that find t...
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What does the [Flags] Enum Attribute mean in C#?

...t expect in bitwise operations, because by default the values start with 0 and increment. Incorrect declaration: [Flags] public enum MyColors { Yellow, // 0 Green, // 1 Red, // 2 Blue // 3 } The values, if declared this way, will be Yellow = 0, Green = 1, Red = 2, Blu...
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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?

I have two Python dictionaries, and I want to write a single expression that returns these two dictionaries, merged (i.e. taking the union). The update() method would be what I need, if it returned its result instead of modifying a dictionary in-place. ...
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git merge: apply changes to code that moved to a different file

... git did not notice that the code in the new file was the same as the old, and so none of my changes are there. 3 Answers...
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How to know if two arrays have the same values

...have these two arrays: one is filled with information from an ajax request and another stores the buttons the user clicks on. I use this code (I filled with sample numbers): ...
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Cannot create or edit Android Virtual Devices (AVD) from Eclipse, ADT 22.6

...T 22.6.0 ONLY, THESE BUGS SUBSEQUENTLY FIXED IN FOLLOWING BUILDS Download and install new ADT v22.6.1 from here (zip) or use SDK manager to update Seems like some bug from Google side, this problem found after "ADT 22.6" update. Widely reported on "Android Open Source Project - Issue Tracker" and ...
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How to generate a random string of a fixed length in Go?

I want a random string of characters only (uppercase or lowercase), no numbers, in Go. What is the fastest and simplest way to do this? ...
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Java rounding up to an int using Math.ceil

...still return 4? 157/32 = 4.90625 , I need to round up, I've looked around and this seems to be the right method. 15 Answer...
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What's the difference between lapply and do.call?

I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ? ...
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Swift Beta performance: sorting arrays

I was implementing an algorithm in Swift Beta and noticed that the performance was very poor. After digging deeper I realized that one of the bottlenecks was something as simple as sorting arrays. The relevant part is here: ...