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How to round a number to significant figures in Python

...Wow, your answer needs to be really read from top to bottom ;) This double-cast trick is dirty, but neat. (Note that 1999 formatted as 2000.0 suggests 5 significant digits, so it has to go through {:g} again.) In general, integers with trailing zeros are ambiguous with regard to significant figures,...
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How to convert Nonetype to int or string?

... we can use (value or 0) -- without the int type casting -- if we assured that value can only be a None or an int – hashlash Jun 14 '19 at 20:16 ...
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How to convert byte array to Bitmap

... @Julian How to byte[] cannot be cast to java.lang.String when retreving image from Sqlite stackoverflow.com/questions/63658886/… – Kingg Aug 30 at 16:03 ...
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dispatch_after - GCD in Swift?

...e was slightly wrong. Implicit typing causes a compile error if you don't cast NSEC_PER_SEC to a Double. If anyone can suggest a more optimal solution I'd be keen to hear it. share | improve this ...
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Difference between 'new operator' and 'operator new'?

...own container, you can call operator new directly, like: char *x = static_cast<char *>(operator new(100)); It's also possible to overload operator new either globally, or for a specific class. IIRC, the signature is: void *operator new(size_t); Of course, if you overload an operator new...
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Do Swift-based applications work on OS X 10.9/iOS 7 and lower?

...troller()"? Is var not same as JavaScript/C# (if no, then so sad)? Is this casting, but object types are same on both sides of equal sign? – Tien Do Jun 6 '14 at 4:29 ...
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Python: changing value in a tuple

... It seems unnecessary and memory inefficient to recast into a list and use a temporary variable. You can just unpack into a tuple with the same name and while unpacking update whatever needs updating. – Brian Spiering Oct 5 '18 at 3:23 ...
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How do you simulate Mouse Click in C#?

... You need to cast the X and Y to uints. – Dibesjr Jan 5 '13 at 19:10 1 ...
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Is there auto type inferring in Java?

... " Thats not what I meant, once you type cast it to an Object, it will give you Object's to_string" False. Absolutely 100% false. – Louis Wasserman Apr 21 '13 at 18:33 ...
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How to implement onBackPressed() in Fragments?

...mixing safe calls (.?) and enforcing non-nulls (!!) can lead to NPEs - the cast is not always safe. I'd rather write if ((fragment as? IOnBackPressed)?.onBackPressed()?.not() == true) { ... } or more kotliney (fragment as? IOnBackPressed)?.onBackPressed()?.not()?.let { ... } – ...