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Why does changing the sum order returns a different result?
... In IEEE floating point representation, bits 2-12 represent the binary exponent, that is, the scale of the number. (The first bit is the sign bit, and the remaining bits for the mantissa.) The exponent represented is actually the binary number minus 1023.
The exponents for the first 4 numbers are...
Array to Hash Ruby
...item 3" => "item 4" }
That's it. The * is called the splat operator.
One caveat per @Mike Lewis (in the comments): "Be very careful with this. Ruby expands splats on the stack. If you do this with a large dataset, expect to blow out your stack."
So, for most general use cases this method is g...
Finding out whether a string is numeric or not
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Here's one way that doesn't rely on the limited precision of attempting to parse the string as a number:
NSCharacterSet* notDigits = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
if ([newString rangeOfCharacterFromSet:no...
Difference between onCreateView and onViewCreated in Fragment
...fference between these two methods? When I create a TextView, should I use one over the other for performance?
9 Answers
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Smooth GPS data
...e best estimate of current location is the last known location, and if someone is moving it should be possible to use Android's sensors to produce a better estimate. The code has a single free parameter Q, expressed in metres per second, which describes how quickly the accuracy decays in the absenc...
Multiple cases in switch statement
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There is no syntax in C++ nor C# for the second method you mentioned.
There's nothing wrong with your first method. If however you have very big ranges, just use a series of if statements.
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How to convert a string of bytes into an int?
...ing to the docs L is standard size (4) "when the format string starts with one of '<', '>', '!' or '='." docs.python.org/library/struct.html#format-characters
– André Laszlo
Dec 24 '11 at 0:50
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How to add directory to classpath in an application run profile in IntelliJ IDEA?
...rations with two different directories that must be exclusively present in one but not the other. In eclipse you can add/remove anything to a launch configuration. Does IntelliJ not support this?
– Καrτhικ
Dec 9 '14 at 16:52
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How can I create an object and add attributes to it?
...Bunch recipe, but if you don't want to make a "bunch class", a very simple one already exists in Python -- all functions can have arbitrary attributes (including lambda functions). So, the following works:
obj = someobject
obj.a = lambda: None
setattr(obj.a, 'somefield', 'somevalue')
Whether the...
Quit and restart a clean R session from within R?
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Depending on how you start R try placing one of these lines into your .Rprofile file:
makeActiveBinding("refresh", function() { shell("Rgui"); q("no") }, .GlobalEnv)
makeActiveBinding("refresh", function() { system("R"); q("no") }, .GlobalEnv)
Then entering this...