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What is the fastest way to compute sin and cos together?
...pport it.
Edit:
Intel's documentation states that FSINCOS is just about 5 times slower than FDIV (i.e., floating point division).
Edit:
Please note that not all modern compilers optimize calculation of sine and cosine into a call to FSINCOS. In particular, my VS 2008 didn't do it that way.
Edit:
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Get specific line from text file using just shell script
... edit suggestion based on your comment, as I agree with it. Hopefully this time it won't be rejected.
– Victor Zamanian
Aug 2 '17 at 10:30
add a comment
| ...
Are the days of passing const std::string & as a parameter over?
...e worst case of something is bound by a constant, then it's still constant time. Is there not a longest small string? Doesn't that string take some constant amount of time to copy? Don't all smaller strings take less time to copy? Then, string copying for small strings is "constant time" in orde...
Why C# fails to compare two object types with each other but VB doesn't?
... the ==, you can get different behaviour - but that's based on the compile-time type of the expressions. For example, string provides ==(string, string):
string x = new string("foo".ToCharArray());
string y = new string("foo".ToCharArray());
Console.WriteLine(x == y); // True
Console.WriteLine((obj...
Convert from MySQL datetime to another format with PHP
I have a datetime column in MySQL.
18 Answers
18
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Swift: #warning equivalent
...TAGS)/ warning: \$1/"
This will force Xcode to flag a warning at compile time for any // TODO: or // FIXME: comments you markup.
Alternatively, you could amend TAGS with a custom tag: TAGS="WARNING:" in the above code which would keep the default behaviour for TODO & FIXME and would raise a c...
How to automatically install Emacs packages by specifying a list of package names?
...ts)) from the accepted answer. The package refresh here increases startup time on systems that already have the packages installed. The rest of this answer is perfect, though.
– rfinz
Feb 26 '14 at 21:47
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How to detect internet speed in JavaScript?
...oad image with a known file size then in its onload event measure how much time passed until that event was triggered, and divide this time in the image file size.
Example can be found here: Calculate speed using javascript
Test case applying the fix suggested there:
//JUST AN EXAMPLE, PLEASE...
Android accelerometer accuracy (Inertial navigation)
...
I realise this is a long time ago, but I've got a follow-up question. The camera in Android JB has a 'panorama' feature, which lets you take a panoramic picture by moving the phone, either rotating it or moving it linearly along one axis. To do thi...
How to access the ith column of a NumPy multidimensional array?
...
And if you want to access more than one column at a time you could do:
>>> test = np.arange(9).reshape((3,3))
>>> test
array([[0, 1, 2],
[3, 4, 5],
[6, 7, 8]])
>>> test[:,[0,2]]
array([[0, 2],
[3, 5],
[6, 8]])
...