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What is the fastest way to get the value of π?

...ll depends on what kind of accuracy you are looking for. The fastest π I know of is the one with the digits hard coded. Looking at Pi and Pi[PDF], there are a lot of formulae. Here is a method that converges quickly — about 14 digits per iteration. PiFast, the current fastest application, uses t...
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How to convert nanoseconds to seconds using the TimeUnit enum?

... This answer is now wrong - convert() and the toFoo() methods all return longs now docs.oracle.com/javase/6/docs/api/java/util/concurrent/… – Riking Jul 30 '13 at 1:58 ...
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Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell

...ex + 1) (triangle + index + 1) main = print $ nextTriangle 1 1 EDIT: So now that we've explored that, lets address the questions Question 1: Do erlang, python and haskell lose speed due to using arbitrary length integers or don't they as long as the values are less than MAXINT? In Haske...
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How to match “any character” in regular expression?

...) { System.out.println(test + " " +test.matches(".+123")); } Now you can easily add new testcases and try new patterns. Have fun exploring regex. See also regular-expressions.info/Tutorial share | ...
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How to decorate a class?

...consider a subclass instead of the approach you've outlined. However, not knowing your specific scenario, YMMV :-) What you're thinking of is a metaclass. The __new__ function in a metaclass is passed the full proposed definition of the class, which it can then rewrite before the class is created. ...
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Programmatically change UITextField Keyboard type

...one project with respective keyboard type. this is woked few days ago. but now this is not worked. Not getting actual reason – Rahul Phate Jun 19 '19 at 11:43 ...
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What does new self(); mean in PHP?

... That's why PHP 5.3 introduces a new usage for the static keyword : it can now be used exactly where we used self in those examples : class MyParentClass { public static function getInstance() { return new static(); } } class MyChildClass extends MyParentClass { } $a = MyChildClas...
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How can I force division to be floating point? Division keeps rounding down to 0?

... integer values a and b , but I need their ratio in floating point. I know that a < b and I want to calculate a / b , so if I use integer division I'll always get 0 with a remainder of a . ...
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Types in MySQL: BigInt(20) vs Int(20)

... ` it affects only the ZEROFILL option:` now my curiosity ends – Umair Ayub Jul 5 '16 at 10:42 6 ...
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How to print a stack trace in Node.js?

Does anyone know how to print a stack trace in Node.js? 11 Answers 11 ...