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How can I format a number into a string with leading zeros?

I have a number that I need to convert to a string. First I used this: 10 Answers 10 ...
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Detailed 500 error message, ASP + IIS 7.5

...rs to browser", and click "Apply". Under "Error Pages" on the home screen select "500", then "Edit feature settings" and select "Detailed Errors". Note that the same steps apply for IIS 8.0 (Windows Server 2012). share ...
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What is the best way to iterate over a dictionary?

...e wrong collection type in the first place), you should iterate dictionary.Select( (kvp, idx) => new {Index = idx, kvp.Key, kvp.Value}) instead and not use .ElementAt inside the loop. – spender Mar 2 '15 at 2:17 ...
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Simple way to create matrix of random numbers

... First, create numpy array then convert it into matrix. See the code below: import numpy B = numpy.random.random((3, 4)) #its ndArray C = numpy.matrix(B)# it is matrix print(type(B)) print(type(C)) print(C) ...
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The function to show current file's full path in mini buffer

...yourself by visiting a file with C-x C-f, running M-! pwd, then M-x cd and selecting a different directory, then running M-! pwd again. – josaphatv Apr 30 '17 at 17:44 add a c...
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Printing leading 0's in C?

...i, o, u, x, X, a, A, e, E, f, F, g, and G conversions, the converted value is padded on the left with zeros rather than blanks. If the 0 and - flags both appear, the 0 flag is ignored. If a precision is given with a numeric c...
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Interface Builder: What are the UIView's Layout iOS 6/7 Deltas for?

...ew to see how this will render in iOS 7 and iOS 6 device. Quick steps: Select each immediate children of root view individually and add 20px to its 'Y' value. Then, select all immediate children collectively and give delta Y as -20px. You can also do this in batch or individually. ...
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Chaining multiple filter() in Django, is this a bug?

...estricted the set of blogs further to those that are also (B). The entries select by the second filter may or may not be the same as the entries in the first filter.` share | improve this answer ...
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How do I calculate square root in Python?

...int division by default, from __future__ import division Or, you could convert 1 or 2 of 1/2 into a floating point value. sqrt = x**(1.0/2) share | improve this answer | ...
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Normalize data in pandas

... Select the subset and compute as before. See pandas.pydata.org/pandas-docs/stable/indexing.html on how to index and select data – Wouter Overmeire Oct 19 '15 at 6:43 ...