大约有 42,000 项符合查询结果(耗时:0.0415秒) [XML]

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arrayfun can be significantly slower than an explicit loop in matlab. Why?

...ng out the computations, instead of using a function in your loop tic Soln3 = ones(T, N); for t = 1:T for n = 1:N Soln3(t, n) = 3*x(t, n)^2 + 2*x(t, n) - 1; end end toc Time to compute on my computer: Soln1 1.158446 seconds. Soln2 10.392475 seconds. Soln3 0.239023 seconds. Oli...
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Union Vs Concat in Linq

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How do you stop Console from popping up automatically in Eclipse

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Difference between len() and .__len__()?

Is there any difference between calling len([1,2,3]) or [1,2,3].__len__() ? 4 Answers ...
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How to Create Deterministic Guids

... As mentioned by @bacar, RFC 4122 §4.3 defines a way to create a name-based UUID. The advantage of doing this (over just using a MD5 hash) is that these are guaranteed not to collide with non-named-based UUIDs, and have a very (very) small possibility of collisi...
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relative path in require_once doesn't work

... DarkSide 3,34711 gold badge2222 silver badges3131 bronze badges answered Mar 20 '11 at 22:09 RaisenRaisen ...
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Detect IF hovering over element with jQuery

... 306 Original (And Correct) Answer: You can use is() and check for the selector :hover. var isHov...
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How to generate controller inside namespace in rails

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How do I list all versions of a gem available at a remote site?

...c --remote --all Which returns: *** REMOTE GEMS *** rhc (0.84.15, 0.84.13, 0.83.9, 0.82.18, 0.81.14, 0.80.5, 0.79.5, 0.77.8, 0.75.9, 0.74.6, 0.74.5, 0.73.14, 0.72.29, 0.71.2, 0.69.6, 0.69.3, 0.68.5) rhcp (0.2.18, 0.2.17, 0.2.16, 0.2.15, 0.2.14, 0.1.9, 0.1.8, 0.1.7, 0.1.6, 0.1.5, 0.1.4, 0.1.3, 0.1...
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Disable Rails SQL logging in console

... 321 To turn it off: old_logger = ActiveRecord::Base.logger ActiveRecord::Base.logger = nil To t...