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How to calculate the difference between two dates using PHP?

...rom this it's rather easy to calculate different time periods. $date1 = "2007-03-24"; $date2 = "2009-06-26"; $diff = abs(strtotime($date2) - strtotime($date1)); $years = floor($diff / (365*60*60*24)); $months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24)); $days = floor(($diff - $years ...
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Generate random numbers using C++11 random library

...u can see his full talk here: http://channel9.msdn.com/Events/GoingNative/2013/rand-Considered-Harmful #include <random> #include <iostream> int main() { std::random_device rd; std::mt19937 mt(rd()); std::uniform_real_distribution<double> dist(1.0, 10.0); for (in...
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Truncate a list to a given number of elements

What method truncates a list--for example to the first 100 elements--discarding the others (without iterating through individual elements)? ...
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Confusion between factor levels and factor labels

...ends? – donodarazao May 3 '11 at 13:02 6 I would often transform the levels right before plotting...
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Understanding scala enumerations

... 150 the Enumeration trait has a type member Value representing the individual elements of the enumer...
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Time complexity of Sieve of Eratosthenes algorithm

... answered Apr 6 '10 at 5:17 ShreevatsaRShreevatsaR 34.9k1515 gold badges9595 silver badges117117 bronze badges ...
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Why do we need fibers

... 230 +100 Fibers a...
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Converting between datetime, Timestamp and datetime64

... np >>> dt = datetime.utcnow() >>> dt datetime.datetime(2012, 12, 4, 19, 51, 25, 362455) >>> dt64 = np.datetime64(dt) >>> ts = (dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's') >>> ts 1354650685.3624549 >>> datetime.utcfromt...
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Is there a Java equivalent to C#'s 'yield' keyword?

...options I know of is Aviad Ben Dov's infomancers-collections library from 2007 and Jim Blackler's YieldAdapter library from 2008 (which is also mentioned in the other answer). Both will allow you to write code with yield return-like construct in Java, so both will satisfy your request. The notable ...
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How to break nested loops in JavaScript? [duplicate]

...o break to a label, like so: function foo () { dance: for(var k = 0; k < 4; k++){ for(var m = 0; m < 4; m++){ if(m == 2){ break dance; } } } } share...