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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?

...ill somewhat faster than sqrtss. edit: If speed is critical, and you're really calling this in a loop for many values, you should be using the vectorized versions of these instructions, rsqrtps or sqrtps, both of which process four floats per instruction. ...
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How to check if a number is between two values?

... edited Sep 3 '19 at 10:43 JuicY_Burrito 35522 silver badges1313 bronze badges answered Feb 5 '13 at 22:58 und...
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How to execute a MySQL command from a shell script?

... type it in here> ERROR 1049 (42000): Unknown database 'XXXXXXXX' Actually, I prefer to store the user and password in ~/.my.cnf so I don't have to put it on the command-line at all: [client] user = root password = XXXXXXXX Then: $ mysql -h "server-name" "database-name" < "filename.sql" ...
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WordPress asking for my FTP credentials to install plugins

I installed a WordPress blog in my local system. But when I try to add plugins from admin it asks for FTP access. What do I need to configure for WordPress to be able to upload without FTP? ...
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Max parallel http connections in a browser?

...server (comet, reverse ajax, etc). It works ok, but I see the browser only allows two suspended connections to a given domain simultaneously. So if a user is looking at my website in Tab1 of their browser, then also tries loading it in Tab2, they've used up the two allowed connections to my site. ...
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How to remove the first character of string in PHP?

... Note that lrtim will remove all :::::. Sometimes this is not desired behavior. – CoR Nov 20 '13 at 14:02 5 ...
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Why are regular expressions so controversial? [closed]

...ions. And not just slow, but the performance of the regex engine can be totally unpredictable when faced with arbitrary (user-supplied) inputs. – Pacerier Dec 1 '15 at 21:53 ...
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Viewing full output of PS command

...13681 0.0 0.0 1420 852 pts/1 S 14:39:32 0:00 grep ps ps aux lists all processes executed by all users. See man ps for details. The ww flag sets unlimited width. -w Wide output. Use this option twice for unlimited width. w Wide output. Use this option twice for unlimited ...
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iPhone viewWillAppear not firing

... my navigation controller's delegate and still the method was not getting called. Anyway, I set it and then I used the methods you mention above. Thanks. – Dimitris Mar 29 '10 at 12:53 ...
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How to remove stop words using nltk or python

... Note: this converts the sentence to a SET which removes all the duplicate words and therefore you will not be able to use frequency counting on the result – David Dehghan Feb 21 '17 at 23:59 ...