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How to replace text between quotes in vi
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183
Use ci", which means: change what inside the double quotes.
You can also manipulate other t...
Display current time in 12 hour format with AM/PM
Currently the time displayed as 13:35 PM
However I want to display as 12 hour format with AM/PM, i.e 1:35 PM instead of 13:35 PM
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nginx missing sites-available directory
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edited Jun 26 '18 at 21:00
user2066657
27822 silver badges1414 bronze badges
answered Jul 2 '...
How do I obtain the frequencies of each value in an FFT?
...al terms, the nth bin is n * Fs / N.
So if your sample rate, Fs is say 44.1 kHz and your FFT size, N is 1024, then the FFT output bins are at:
0: 0 * 44100 / 1024 = 0.0 Hz
1: 1 * 44100 / 1024 = 43.1 Hz
2: 2 * 44100 / 1024 = 86.1 Hz
3: 3 * 44100 / 1024 = 129.2 Hz
4: .....
UnicodeDecodeError when reading CSV file in Pandas with Python
...s in different formats. I mostly use read_csv('file', encoding = "ISO-8859-1"), or alternatively encoding = "utf-8" for reading, and generally utf-8 for to_csv.
You can also use one of several alias options like 'latin' instead of 'ISO-8859-1' (see python docs, also for numerous other encodings you...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...ference between :key => "value" (hashrocket) and key: "value" (Ruby 1.9) notations?
5 Answers
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What are the special dollar sign shell variables?
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1398
$1, $2, $3, ... are the positional parameters.
"$@" is an array-like construct of all positi...
Can we write our own iterator in Java?
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answered May 1 '11 at 15:03
T.J. CrowderT.J. Crowder
825k153153 gold badges15121512 silver badges15541554 bronze badges
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How to set child process' environment variable in Makefile
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158
Make variables are not exported into the environment of processes make invokes... by default. ...