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Understanding FFT output
...sqrt (real * real + imag * imag). This number will always be positive. Now all you have to search is for the maximum value (ignore the first entry in your array. That is your DC offset and carries no frequency dependent information).
You get 32 real and 32 imaginary outputs because you are using a ...
Why does dividing two int not yield the right value when assigned to double?
... to explicitly convert both a and b to double simply for clarity, but it really doesn't matter.
– John Dibling
Sep 27 '11 at 15:31
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Color in git-log
...ate config.
But the git log --format don't offer a way to display specifically the HEAD or remotes or branch: all three are displayed through %d, with one color possible.
Update May 2013, as mentioned below by Elad Shahar (upvoted), git 1.8.3 offers one more option:
git log –format now spo...
How to find the largest file in a directory and its subdirectories?
...n X" instead of the only "head" above to print the top X largest files (in all the above examples)
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Set keyboard caret position in html textbox
...ion in a Textbox or TextArea with Javascript
A generic function that will allow you to insert the caret at any position of a textbox or textarea that you wish:
function setCaretPosition(elemId, caretPos) {
var elem = document.getElementById(elemId);
if(elem != null) {
if(elem.crea...
UIButton inside a view that has a UITapGestureRecognizer
...wered Jul 27 '10 at 22:29
Lily BallardLily Ballard
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How do you pass custom environment variable on Amazon Elastic Beanstalk (AWS EBS)?
...ll deploy to another environment later and are afraid of forgetting to manually set them, or if you are ok with committing the values to source control. I use a mix of both.
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CSS selector for “foo that contains bar”? [duplicate]
...
No, what you are looking for would be called a parent selector. CSS has none; they have been proposed multiple times but I know of no existing or forthcoming standard including them. You are correct that you would need to use something like jQuery or use additiona...
Including one C source file in another?
...e.
Say you have a complex, performance critical subsystem with a fairly small public interface and a lot of non-reusable implementation code. The code runs to several thousand lines, a hundred or so private functions and quite a bit of private data. If you work with non-trivial embedded systems, yo...
Are soft deletes a good idea? [duplicate]
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I say it's a bad idea, generally (with some exceptions, perhaps).
First, your database should be backed up regularly, so you should never be in a situation where you would lose data permanently because of a DELETE (unless it's a deletion of just-adde...