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

...which you can directly express as loop nests. Where does the overhead come from we can not know. Could the overhead be avoided by a better implementation? Maybe not. But unfortunately the only thing we can do is study the performance to identify the cases, in which it works well, and those, where it...
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foldl versus foldr behavior with infinite lists

...rk backwards computing each application of f. This is obviously a far cry from the efficient tail-recursion most functional programmers know and love! In fact, even though foldl is technically tail-recursive, because the entire result expression is built before evaluating anything, foldl can cause...
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How does std::move() transfer values into RValues?

...mple; named rvalue reference is treated as lvalue (and implicit conversion from lvalue to rvalue reference is forbidden by standard). Here's what happens when we call move with lvalue: Object a; // a is lvalue Object b = std::move(a); and corresponding move instantiation: // move with [T = Ob...
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Providing white space in a Swing GUI

...eaningful space while also paying attention to clutter separates the wheat from the chaff. share | improve this answer | follow | ...
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What is a Context Free Grammar?

...gular grammar because it has rules which generate two non-terminal symbols from a single nonterminal symbol, which is not allowed in regular grammars (also, as OP pointed out, it has rules with multiple nonterminal symbols on the left). en.wikipedia.org/wiki/Regular_grammar – a...
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Do I encode ampersands in ?

...t will remain possible to escape ampersands in attribute values, but apart from validation with current tools, there is no practical need to escape them in href values (and there is a small risk of making mistakes if you start escaping them). ...
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How to gracefully handle the SIGKILL signal in Java

...y want to differentiate whether it has been terminated gracefully (SIGTERM from the manager process) or a shutdown has occurred (in order to relaunch automatically the job on startup). As a basis, I always make my long-running threads periodically aware of interrupted status and throw an Interrupte...
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HTTP status code for a partial successful request

... Yes, @Sinaesthetic. From the most recent HTTP 1.1 spec, "(...) the request has been accepted for processing, but the processing has not been completed". So, for partial success, 202 is not appropriate. – Huercio ...
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Notifier 通知扩展:功能强大的Android通知管理工具,支持通知通道、意图、...

...栈中移除所有中间屏幕,这很有用 FLAG_EXCLUDE_FROM_RECENTS 将活动从最近使用的应用程序列表中排除 用于不应显示在最近使用的屏幕列表中的临时或机密屏幕 FLAG_NEW_TASK 在新任务堆栈中启动活动...
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Why are private fields private to the type, not the instance?

...ively defined instance-only accessibility for private methods and fields. From a technical point of view, there's no reason to choose one way or the other (esp. when considering that Eiffel.NET can do this with IL, even with multiple inheritance, there's no inherent reason not to provide this featu...