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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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UITableView Setting some cells as “unselectable”

... Kendall is right. Follow Sebastian Celis' answer to prevent didSelectRowAtIndexPath from being called in the first place. You should also set selectionStyle, though, to prevent the highlighting. – Daniel D...
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How are parameters sent in an HTTP POST request?

...nt in the request body, in the format that the content type specifies. Usually the content type is application/x-www-form-urlencoded, so the request body uses the same format as the query string: parameter=value&also=another When you use a file upload in the form, you use the multipart/form-...
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LINQ: Select an object and change some properties without creating a new object

...erties of a LINQ query result object without creating a new object and manually setting every property. Is this possible? ...
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Order data frame rows according to vector with specific order

... I prefer to use ***_join in dplyr whenever I need to match data. One possible try for this left_join(data.frame(name=target),df,by="name") Note that the input for ***_join require tbls or data.frame ...
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How to install a plugin in Jenkins manually

Installing a plugin from the Update center results in: 12 Answers 12 ...
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How can you use optional parameters in C#?

... Good on you for providing up-to-date information. Ideally the original answers would be updated with current information such as C# 4.0. I believe that is what the SO guys originally had in mind, a Wiki mentality, but everyone is a bit too afraid to edit someone else's answer. ...
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Eclipse Android Plugin — libncurses.so.5

... i do have libncurses5 [root@t520 init.d]# yum install ncurses-libs.x86_64 Loaded plugins: langpacks, presto, refresh-packagekit Setting up Install Process Package ncurses-libs-5.9-2.20110716.fc16.x86_64 already installed and latest version Nothing to do – amphibient ...
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Bundler: Command not found

I am hosting on a vps, ubuntu 10.04, rails 3, ruby and mysql installed correctly by following some tutorials. If I run bundle check or bundle install I get the error '-bash: bundle: command not found'. From gem list --local I see 'bundler (1.0.2, 1.0.0)' is installed. ...
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Creating folders inside a GitHub repository without using Git

...ile with the names of other files in it. tldp.org/LDP/intro-linux/html/sect_03_01.html I know it doesn't make sense to Windows folk, but it's true. – Rick Henderson Apr 6 '16 at 1:57 ...