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Copy and paste content from one file to another file in vi

... Use the variations of d like dd to cut. To write a range of lines to another file you can use: :<n>,<m> w filename Where <n> and <m> are numbers (or symbols) that designate a range of lines. For using the desktop clipboard, take a look at the +g co...
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Compile time string hashing

...rent" hashes in std, so you cannot (without creating a std::string) hash a raw character buffer as a std::string. I stuck the std::string custom hasher (with transparent const char* support) into a my_hash namespace, so you can store it in a std::unordered_map if you need consistency. Based off of...
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How to change the Content of a with Javascript

...he textArea element. Here's the MDN reference value DOMString The raw value contained in the control. share | improve this answer | follow | ...
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LaTeX source code listing like in professional books

...bitxormatrix(genl1) M2 = np.triu(bitxormatrix(genl2),1) for i in range(m-1): for j in range(i+1, m): [r,c] = np.where(M2 == M1[i,j]) for k in range(len(r)): VT[(i)*n + r[k]] = 1; VT[(i)*n + c[k]] = 1; VT[(j)*n ...
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How does a hash table work?

...ze of the number. Usually, the output of such a hash algorithm is inside a range of some large number, typically much larger than the space you have in your table. For instance, let's say that we have room for exactly one million books in the library. The output of the hash calculation could be in t...
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How do I create an empty array/matrix in NumPy?

...nd n = 2): import numpy as np n = 2 X = np.empty(shape=[0, n]) for i in range(5): for j in range(2): X = np.append(X, [[i, j]], axis=0) print X which will give you: [[ 0. 0.] [ 0. 1.] [ 1. 0.] [ 1. 1.] [ 2. 0.] [ 2. 1.] [ 3. 0.] [ 3. 1.] [ 4. 0.] [ 4. 1.]] ...
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Why is unsigned integer overflow defined behavior but signed integer overflow isn't?

...r overflow, which of course would cause problems if the compiler had to "arrange for another behaviour" (e.g. use extra instructions to check for potential overflow and calculate differently in that case). It is also worth noting that "undefined behaviour" doesn't mean "doesn't work". It means tha...
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Given an RGB value, how do I create a tint (or shade)?

... this function is roughly equivalent to raising each sRGB color component (ranging from 0 through 1) to a power of 2.2. (Note that "linear RGB" is not an RGB color space.) See also Violet Giraffe's comment about "gamma correction". ...
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XSD: What is the difference between xs:integer and xs:int?

...e Turing machines and stuff) should accept and properly represent the full range? :-) That would be cool, because the universe, with the laws of physics as they are currently known, does not admit such machines. – Jeppe Stig Nielsen Jul 27 '16 at 14:56 ...
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Using backticks around field names

... @bobince When I was new to dev, I named a column range or something like that. When we upgraded to MySQL 5 it failed because it was a new reserved word! – alex Sep 17 '10 at 0:27 ...