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How to create the most compact mapping n → isprime(n) up to a limit N?
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True, but there are better storage methods than reading from a file in a linear fashion. If you really want to read from a stored set of pre-generated primes, try a more complicated data structure that speeds up the problem.
– CogitoErgoCogitoSum
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Queue.Queue vs. collections.deque
I need a queue which multiple threads can put stuff into, and multiple threads may read from.
7 Answers
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What exceptions should be thrown for invalid or unexpected parameters in .NET?
...pects the consuming developer to be proactive or defensive and to actually read the documentation in detail. I would opt for a friendly/descriptive error over good documentation since the end-user has the chance of seeing one of them and not the other; there's a better chance of having an end-user ...
How to avoid explicit 'self' in Python?
... functions require no knowledge of the actual class
# how hard are they to read and realize that "members" are used?
B.__init__ = B_init
B.__str__ = B_str
print B()
# <The answer is 42.>
Remember, both of these examples are extreme and you won't see them every day, nor am I suggesting you ...
Analyze audio using Fast Fourier Transform
...In an FFT, you only can measure frequencies up to half your sample points. Read these links on the Nyquist Frequency and Nyquist-Shannon Sampling Theorem if you are a glutton for punishment and need to know why, but the basic result is that your lower frequencies are going to be replicated or aliase...
Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...ite("too young, too naive!\n")
else
local age = io.read()
print("Your age is "..age)
end复制代码
上面的语句不但展示了if-else语句，也展示了
1）“～=”是不等于，而不是!=
2）io库的分别从stdin和stdout读写的read...
How to simulate a higher resolution screen? [closed]
... a bad answer. However, that site provides absolutely nothing you can't already do yourself by simply resizing the browser window on any desktop computer. IMHO, the links on that page for tablets & phones are totally worthless... because on a little iPod screen, my 1000 pixel wide site gets au...
How do I add a library project to Android Studio?
...consider Dependencies, Android Libraries and Multi-project setup necessary reading. Please take a few minutes to do so.
Particularly, in the case of a non-jar library project, read the following snippet from above source:
Gradle projects can also depend on other gradle projects by using a multi...
config.assets.compile=true in Rails production, why not?
... a lot of complexity to production systems.
[Edit, June 2015] If you are reading this because you are looking for a solution for slow compile times during a deploy, then you could consider precompiling the assets locally. Information on this is in the asset pipeline guide. This allows you to preco...
Could you explain STA and MTA?
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The COM threading model is called an "apartment" model, where the execution context of initialized COM objects is associated with either a single thread (Single Thread Apartment) or many threads (Multi Thread Apartment). In this model,...