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HTTP status code for a partial successful request
...he context shifts a bit and the defintion of things get a bit blurry or at least hard to understand
– Norbert Hartl
Dec 12 '11 at 11:44
1
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What is a Context Free Grammar?
...ne.
The language of all strings using the letters a and b that contain at least three b's is a regular language: abababa
The language of all strings using the letters a and b that contain more b's than a's is not regular.
Also you should not that all finite language are regular, for example:
The...
Data structure: insert, remove, contains, get random element, all at O(1)
...tablish for this particular behavior -- and that hash tables are always at least 20% full, it's easy to see that:
It will never happen that getRandom() has to try more than 1000 times. Just never. Indeed, the probability of such an event is 0.8^1000, which is 10^-97 -- so we'd have to repeat it 10^...
arrayfun can be significantly slower than an explicit loop in matlab. Why?
...Oli 8.089113 seconds.
You see that the arrayfun is still bad, but at least not three orders of magnitude worse than the vectorized solution. On the other hand, a single loop with column-wise computations is as fast as the fully vectorized version... That was all done on a single CPU. Results f...
Why are quaternions used for rotations?
...se representations of rotations are used in practice. Euler angles use the least memory; matrices use more memory but don't suffer from Gimbal lock and have nice analytical properties; and quaternions strike a nice balance of both, being lightweight, but free from Gimbal lock.
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Is it possible to force Excel recognize UTF-8 CSV files automatically?
...n is how to make Excel show UTF8 data with a simple double click?
Well at least in Excel 2007 this is not possible if you use CSV files because the UTF8 BOM is ignored and you will see only garbage. This is already part of the question of Lyubomyr Shaydariv:
"I also tried specifying UTF-8 BO...
Detect encoding and make everything UTF-8
...in until the string is returned unchanged. One call to fixUTF8() takes at least twice the time of a call to forceUTF8(), so it's a lot less performant. I made fixUTF8() just to create a command line program that would fix "encode-corrupted" files, but in a live environment is rarely needed.
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What is the difference between bottom-up and top-down?
...ide which subproblems to reveal.)
Memoization, Tabulation
There are at least two main techniques of dynamic programming which are not mutually exclusive:
Memoization - This is a laissez-faire approach: You assume that you have already computed all subproblems and that you have no idea what the...
How can I make a time delay in Python? [duplicate]
...d happen to be exactly 0.1 second, 6 multiples of 16.66 ms)? Or is e.g. at least 1 ms guaranteed? For example, could a specified delay of 3 ms actually result in a 17 ms delay?
– Peter Mortensen
Nov 27 '19 at 18:42
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How to throw a C++ exception
...sion of what() will be called - cause it is caught by reference (change at least the caught argument std::exception type to be by value - and you will experience the "object slicing" phenomena in action).
3) In case that the "some code due to the fact that XXX exception was thrown..." does importa...