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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?

...posing a matrix of size 2^n is slower than transposing one of size 2^n+1 . For small values of n , the difference is not major. ...
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Get first day of week in PHP?

Given a date MM-dd-yyyy format, can someone help me get the first day of the week? 38 Answers ...
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How to convert floats to human-readable fractions?

...pproximation to given real number C code to be exactly what you are asking for. Its based on the theory of continued fractions and very fast and fairly compact. I have used versions of this customized for specific numerator and denominator limits. /* ** find rational approximation to given real n...
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100% width Twitter Bootstrap 3 template

...at layout with bootstrap 3. I am using the Geometry PSD template from themeforest, the link here if you want to see the layout : http://themeforest.net/item/geometry-design-for-geolocation-social-networkr/4752268 ...
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Why `null >= 0 && null

...hat really happens is that the Greater-than-or-equal Operator (>=), performs type coercion (ToPrimitive), with a hint type of Number, actually all the relational operators have this behavior. null is treated in a special way by the Equals Operator (==). In a brief, it only coerces to undefined:...
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Increasing the timeout value in a WCF service

... Are you referring to the server side or the client side? For a client, you would want to adjust the sendTimeout attribute of a binding element. For a service, you would want to adjust the receiveTimeout attribute of a binding elemnent. <system.serviceModel> <bindings&gt...
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Best way to find if an item is in a JavaScript array? [duplicate]

...= n >= 0 ? n : Math.max(len - Math.abs(n), 0); for (; k < len; k++) { if (k in t && t[k] === searchElement) return k; } return -1; }; } Daniel James's version: if (!Array.prototype.indexOf) { Array.prototype.indexOf = function (...
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How do CSS triangles work?

...riangles into a page without adding additional elements simply by using :before or :after pseudo classes. – zzzzBov Aug 16 '11 at 13:24 ...
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Is there a way to automatically build the package.json file for Node.js projects

...n about your node.js project. Use npm init to generate package.json files for you! It comes bundled with npm. Read its documentation here: https://docs.npmjs.com/cli/init Also, there's an official tool you can use to generate this file programmatically: https://github.com/npm/init-package-json ...
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Android emulator-5554 offline

... This also worked for me (killing ADB didn't solve my problem, in any situations). – Booger Apr 24 '14 at 23:21 ...