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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting

... 230 For fitting y = A + B log x, just fit y against (log x). >>> x = numpy.array([1, 7, 20...
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What does `void 0` mean? [duplicate]

... 1024 What does void 0 mean? void[MDN] is a prefix keyword that takes one argument and always retur...
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How to avoid the “divide by zero” error in SQL?

... by zero" error we have programmed it like this: Select Case when divisor=0 then null Else dividend / divisor End ,,, But here is a much nicer way of doing it: Select dividend / NULLIF(divisor, 0) ... Now the only problem is to remember the NullIf bit, if I use the "/" key. ...
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Keep only first n characters in a string?

...r JavaScript's String method substring e.g. 'Hiya how are you'.substring(0,8); Which returns the string starting at the first character and finishing before the 9th character - i.e. 'Hiya how'. substring documentation s...
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How to scale SVG image to fill browser window?

... How about: html, body { margin:0; padding:0; overflow:hidden } svg { position:fixed; top:0; bottom:0; left:0; right:0 } Or: html, body { margin:0; padding:0; overflow:hidden } svg { position:fixed; top:0; left:0; height:100%; width:100% } I have an ex...
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What is the default value for enum variable?

... It is whatever member of the enumeration represents the value 0. Specifically, from the documentation: The default value of an enum E is the value produced by the expression (E)0. As an example, take the following enum: enum E { Foo, Bar, Baz, Quux } Without overriding the ...
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How to compare two colors for similarity/difference

... answered Jan 26 '12 at 14:20 Liudvikas BukysLiudvikas Bukys 5,27033 gold badges2323 silver badges3636 bronze badges ...
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How to create a UIView bounce animation?

...r alloc] initWithItems:@[self.redSquare]]; elasticityBehavior.elasticity = 0.7f; [self.animator addBehavior:elasticityBehavior]; And here are the results UIKit Dynamics is a really powerful and easy to use addition to iOS7 and you can get some great looking UI from it. Other examples: ...
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Move an array element from one array position to another

... +150 If you'd like a version on npm, array-move is the closest to this answer, although it's not the same implementation. See its usage sec...
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++someVariable vs. someVariable++ in JavaScript

... 250 Same as in other languages: ++x (pre-increment) means "increment the variable; the value of th...