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What is more efficient? Using pow to square or just multiply it with itself?
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84
I tested the performance difference between x*x*... vs pow(x,i) for small i using this code:
#i...
How to Sign an Already Compiled Apk
...-keystore my-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000
then sign the apk using :
jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore my-release-key.keystore my_application.apk alias_name
check here for more info
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Reasons for using the set.seed function
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These two, however, are identical because I set the seed:
R> set.seed(42); sample(LETTERS, 5)
[1] "X" "Z" "G" "T" "O"
R> set.seed(42); sample(LETTERS, 5)
[1] "X" "Z" "G" "T" "O"
R>
There is vast literature on all that; Wikipedia is a good start. In essence, these RNGs are called Pseudo...
How to duplicate sys.stdout to a log file?
...cob GabrielsonJacob Gabrielson
28.1k1313 gold badges4343 silver badges6060 bronze badges
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Find out whether Chrome console is open
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edited Jul 4 at 19:21
KTibow
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answered Oct 18 '11 at...
Can linux cat command be used for writing text to file?
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answered Jun 14 '13 at 19:11
Carl NorumCarl Norum
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index.php not loading by default
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answered Mar 5 '10 at 3:48
John HimmelmanJohn Himmelman
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NPM cannot install dependencies - Attempt to unlock something which hasn't been locked
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421
As per photusenigma at: https://github.com/npm/npm/issues/4815
Run these commands in a termin...
How do I convert an NSString value to NSData?
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1422
NSString* str = @"teststring";
NSData* data = [str dataUsingEncoding:NSUTF8StringEncoding];
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MySQL load NULL values from CSV data
I have a file that can contain from 3 to 4 columns of numerical values which are separated by comma. Empty fields are defined with the exception when they are at the end of the row:
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