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Determi<em>nem>e which JAR file a class is from

... a<em>nem>swered Dec 31 '09 at 4:04 Ch<em>a<em>nem>dem>ra Pat<em>nem>iCh<em>a<em>nem>dem>ra Pat<em>nem>i 16.1k1010 gold badges4747 silver badges6161 bro<em>nem>ze badges ...
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Memoizatio<em>nem> i<em>nem> Haskell?

...f :: I<em>nem>t -&gt; I<em>nem>t faster_f <em>nem> = f_list !! <em>nem> That performs passably well, <em>a<em>nem>dem> replaces what was goi<em>nem>g to take O(<em>nem>^3) time with somethi<em>nem>g that memoizes the i<em>nem>termediate results. But it still takes li<em>nem>ear time just to i<em>nem>dex to fi<em>nem>d the memoized a<em>nem>swer for mf. This mea<em>nem>s that results like: *Mai<em>nem> Dat...
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Get size of a<em>nem> Iterable i<em>nem> Java

.... I<em>nem> ge<em>nem>eral, if there is the cha<em>nem>ce that values is actually a Collectio<em>nem> <em>a<em>nem>dem> <em>nem>ot o<em>nem>ly a<em>nem> Iterable, check this <em>a<em>nem>dem> call size() i<em>nem> case: if (values i<em>nem>sta<em>nem>ceof Collectio<em>nem>&lt;?&gt;) { retur<em>nem> ((Collectio<em>nem>&lt;?&gt;)values).size(); } // use Iterator here... The call to size() will usually be much fa...
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Does the ter<em>nem>ary operator exist i<em>nem> R?

... As if is fu<em>nem>ctio<em>nem> i<em>nem> R <em>a<em>nem>dem> retur<em>nem>s the latest evaluatio<em>nem>, if-else is equivale<em>nem>t to ?:. &gt; a &lt;- 1 &gt; x &lt;- if(a==1) 1 else 2 &gt; x [1] 1 &gt; x &lt;- if(a==2) 1 else 2 &gt; x [1] 2 The power of R is vectorizatio<em>nem>. The vectorizatio<em>nem> of t...
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Differe<em>nem>ce betwee<em>nem> exit() <em>a<em>nem>dem> sys.exit() i<em>nem> Pytho<em>nem>

I<em>nem> Pytho<em>nem>, there are two similarly-<em>nem>amed fu<em>nem>ctio<em>nem>s, exit() <em>a<em>nem>dem> sys.exit() . What's the differe<em>nem>ce <em>a<em>nem>dem> whe<em>nem> should I use o<em>nem>e over the other? ...
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How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` stri<em>nem>g usi<em>nem>g <em>Nem>odeJS?

... If you're usi<em>nem>g <em>Nem>ode.js, you're sure to have EcmaScript 5, <em>a<em>nem>dem> so Date has a toIS<em>OSem>tri<em>nem>g method. You're aski<em>nem>g for a slight modificatio<em>nem> of ISO8601: <em>nem>ew Date().toIS<em>OSem>tri<em>nem>g() &gt; '2012-11-04T14:51:06.157Z' So just cut a few thi<em>nem>gs out, <em>a<em>nem>dem> you're set: <em>nem>ew Date().toIS<em>OSem>tri<em>nem>g(). ...
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How come a<em>nem> array's address is equal to its value i<em>nem> C?

I<em>nem> the followi<em>nem>g bit of code, poi<em>nem>ter values <em>a<em>nem>dem> poi<em>nem>ter addresses differ as expected. 6 A<em>nem>swers ...
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What is the differe<em>nem>ce betwee<em>nem> lower bou<em>nem>d <em>a<em>nem>dem> tight bou<em>nem>d?

...the upper bou<em>nem>d, while Omega is the lower bou<em>nem>d. Theta requires both Big O <em>a<em>nem>dem> Omega, so that's why it's referred to as a tight bou<em>nem>d (it must be both the upper <em>a<em>nem>dem> lower bou<em>nem>d). For example, a<em>nem> algorithm taki<em>nem>g Omega(<em>nem> log <em>nem>) takes at least <em>nem> log <em>nem> time, but has <em>nem>o upper limit. A<em>nem> algorithm taki<em>nem>g...
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Queryi<em>nem>g Dy<em>nem>amoDB by date

I'm comi<em>nem>g from a relatio<em>nem>al database backgrou<em>nem>d <em>a<em>nem>dem> tryi<em>nem>g to work with amazo<em>nem>'s Dy<em>nem>amoDB 7 A<em>nem>swers ...
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Scala list co<em>nem>cate<em>nem>atio<em>nem>, ::: vs ++

Is there a<em>nem>y differe<em>nem>ce betwee<em>nem> ::: <em>a<em>nem>dem> ++ for co<em>nem>cate<em>nem>ati<em>nem>g lists i<em>nem> Scala? 4 A<em>nem>swers ...