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Understanding FFT output
... but I'll just add that you really need to apply a window function to your time domain data prior to the FFT, otherwise you will get nasty artefacts in your spectrum, due to spectral leakage.
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How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
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@juanchopanza but the {...} syntax implies compile-time constant extent, so the ctor should be able to deduce the extent.
– Richard
May 26 '11 at 19:53
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Block Comments in a Shell Script
...r nohighlight. Search term highlighting will automatically resume the next time you search for something. Example: :10,100s/^/#/g|noh
– Matthew
Mar 13 '15 at 20:43
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Installing Python 3 on RHEL
...ause:
you can install and uninstall (properly) python3.
the installation time is way faster. If you work in a cloud environment with multiple VMs, compiling python3 on each VMs is not acceptable.
Solution 1: Red Hat & EPEL repositories
Red Hat has added through the EPEL repository:
Python...
Best way to get identity of inserted row?
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Almost every time I have ever wanted 'identity', I have wanted to know the key(s) of the record(s) I just inserted. If that is your situation, you want to use the OUTPUT clause. If you want something else, apply the effort to read and u...
How to jump to a particular line in a huge text file?
...y. I'll need to see what happens if I work on a dozen of files at the same time this way, find out at what point my system dies.
– user63503
Mar 6 '09 at 22:46
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Split code over multiple lines in an R script
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Thanks for making it clear why sometimes you can split lines with a plus sign!
– Iain Samuel McLean Elder
Mar 8 '14 at 20:34
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Is the size of C “int” 2 bytes or 4 bytes?
...e reason your book says 2 bytes is most probably because it's old. At one time, this was the norm. In general, you should always use the sizeof operator if you need to find out how many bytes it is on the platform you're using.
To address this, C99 added new types where you can explicitly ask for ...
A better similarity ranking algorithm for variable length strings
... list to prevent us from matching against the same character pair multiple times. (Otherwise, 'GGGGG' would score a perfect match against 'GG'.)" I would alter this statement to say that it would give a higher than perfect match. Without taking this into account, it also seems to have the result th...
How do I create a list of random numbers without duplicates?
...without duplicates. Benchmarking in IPython, yields 103 µs ± 513 ns for %timeit random.sample(range(1000), 100) , and 17 µs ± 1.24 µs for %timeit np.random.permutation(1000)[:100] .
– Ant Plante
Sep 4 at 10:26
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