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John Carmack's Unusual Fast Inverse Square Root (Quake III)
...Quake III source code which calculates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular i...
Difference between a Postback and a Callback
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A Postback occurs when the data (the whole page) on the page is posted from the client to the se...
sqlite database default time value 'now'
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answered Oct 14 '08 at 8:01
OwenOwen
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Removing all non-numeric characters from string in Python
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Ned BatchelderNed Batchelder
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JavaScript: Class.method vs. Class.prototype.method
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edited Oct 28 '09 at 4:19
answered Oct 28 '09 at 4:08
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How do browsers pause/change Javascript when tab or window is not active?
...ble kBackgroundTabTimerInterval = 1.0;
https://codereview.chromium.org/6546021/patch/1001/2001
Firefox
Similar to Chrome, Firefox limits the minimum interval of setInterval to around 1000ms when the tab (not the window) is inactive. However, requestAnimationFrame runs exponentially slower when th...
What is the difference between :first-child and :first-of-type?
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edited Oct 3 '18 at 2:34
answered Jul 9 '14 at 15:27
Bol...
What is the difference between customErrors and httpErrors?
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4 Answers
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Update Item to Revision vs Revert to Revision
... Peter ParkerPeter Parker
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How do CUDA blocks/warps/threads map onto CUDA cores?
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Two of the best references are
NVIDIA Fermi Compute Architecture Whitepaper
GF104 Reviews
I'...