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In which order should floats be added to get the most precise result?
...estion I was asked at my recent interview and I want to know (I don't actually remember the theory of the numerical analysis, so please help me :)
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Why is arr = [] faster than arr = new Array?
...BER, IDENTIFIER)
new Array: NEW, IDENTIFIER
new Array(): NEW, IDENTIFIER, CALL
new Array(5): NEW, IDENTIFIER, CALL (NUMBER)
new Array(5,4): NEW, IDENTIFIER, CALL (NUMBER, NUMBER)
new Array(5, foo): NEW, IDENTIFIER, CALL (NUMBER, IDENTIFIER)
Hopefully this should provide you a sufficient visualizat...
程序员：编程能力与编程年龄的关系 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...入年龄，这些用户都被过滤了。
用户在2012年内都回答过问题。因为StackOverflow在2012年对问题和答案的质量要求得比以前高了一倍，所以更能反映程序员的真实水平。
Reputation声望在2-100K之间。(注：StackOverflow的用户Reputation是得...
How to append rows to an R data frame
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Not knowing what you are trying to do, I'll share one more suggestion: Preallocate vectors of the type you want for each column, insert values into those vectors, and then, at the end, create your data.frame.
Continuing with Julian's f3 (a preallocated data.frame) as the fastest option so far, def...
vector vs. list in STL
... Inserting elements at the end also counts because it can lead to memory allocation and element copying costs. And also, inserting elenets at the begining of a vector is next to impossible, list has push_front
– Notinlist
Feb 5 '10 at 18:00
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How to turn on front flash light programmatically in Android?
I want to turn on front flash light (not with camera preview) programmatically in Android. I googled for it but the help i found referred me to this page
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What is a deadlock?
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I'm using process here as a generalisation, not specifically an OS Process. These could be threads, but could also be completely different applications, or database connections. The pattern is the same.
– Keith
Sep 23 '08 at 14:42
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Why does C++ need a separate header file?
I've never really understood why C++ needs a separate header file with the same functions as in the .cpp file. It makes creating classes and refactoring them very difficult, and it adds unnecessary files to the project. And then there is the problem with having to include header files, but having to...
上班狗来算算 你离财务自由还差多少钱？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...鸡冻呢~
2。财务自由需要多少软妹币？
这是一个复杂的问题。胡润曾对财务自由的实现给出了一个数字——1亿元。他认为1亿元之后再多的钱就没有必要，说白了就是花不完了，“要想活得舒服，有一套别墅外加在市中心有一...
What are the dangers when creating a thread with a stack size of 50x the default?
...f the data ( float[] s) that I'll be accesing onto the stack (using stackalloc ).
8 Answers
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