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Why are elementwise additions much faster in separate loops than in a combined loop?

... Upon further analysis of this, I believe this is (at least partially) caused by the data alignment of the four-pointers. This will cause some level of cache bank/way conflicts. If I've guessed correctly on how you are allocating your arrays, they are likely to be aligned to the page line....
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How to prevent custom views from losing state across screen orientation changes

...ublic Parcelable onSaveInstanceState() { //begin boilerplate code that allows parent classes to save state Parcelable superState = super.onSaveInstanceState(); SavedState ss = new SavedState(superState); //end ss.stateToSave = this.stateToSave; return ss; } @Override ...
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Is there an MD5 Fixed Point where md5(x) == x?

...ng. Assuming that the MD5 sum of any string is uniformly distributed over all possible sums, then the probability that any given 128-bit string is a fixed point is 1/2128. Thus, the probability that no 128-bit string is a fixed point is (1 − 1/2128)2128, so the probability that there is a fixed ...
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Twitter Bootstrap Customization Best Practices [closed]

... theme.less variables.less /Bootstrap ... Update all the references in theme.less to point to bootstrap sub-directory. Ensure that your variables.less is referenced from the parent and not the bootstrap directory like so: ... // CSS Reset @import "bootstrap/reset.less"; /...
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Trying to embed newline in a variable in bash [duplicate]

...ar ) # Do not use double quotes "$var" echo "$p" Output is the same for all a b c Special thanks to contributors of this answer: kevinf, Gordon Davisson, l0b0, Dolda2000 and tripleee. EDIT See also BinaryZebra's answer providing many details. Abhijeet Rastogi's answer and Dimitry's answer...
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What exactly is OAuth (Open Authorization)?

... What exactly is OAuth (Open Authorization)? OAuth allows notifying a resource provider (e.g. Facebook) that the resource owner (e.g. you) grants permission to a third-party (e.g. a Facebook Application) access to their information (e.g. the list of your friends). If you rea...
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Can I concatenate multiple MySQL rows into one field?

... My need was to get ALL the data from one column. Don't use the GROUP BY clause to do this. Example : SELECT GROUP_CONCAT(emails SEPARATOR ', ') FROM users; – Jonathan Bergeron Jan 17 '14 at 14:04 ...
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What is the bower (and npm) version syntax?

... In a nutshell, the syntax for Bower version numbers (and NPM's) is called SemVer, which is short for 'Semantic Versioning'. You can find documentation for the detailed syntax of SemVer as used in Bower and NPM on the API for the semver parser within Node/npm. You can learn more about the unde...
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How to perform .Max() on a property of all objects in a collection and return the object with maximu

...actly this in MoreLINQ. You can look at the implementation there, but basically it's a case of iterating through the data, remembering the maximum element we've seen so far and the maximum value it produced under the projection. In your case you'd do something like: var item = items.MaxBy(x => ...
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Fixed Table Cell Width

... You could try using the <col> tag manage table styling for all rows but you will need to set the table-layout:fixed style on the <table> or the tables css class and set the overflow style for the cells https://developer.mozilla.org/en-US/docs/Web/HTML/Element/col <table cl...