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The modulo operation on negative numbers in Python
...but in C, if N ≥ 3, we get a negative number which is an invalid number, and we need to manually fix it up by adding 7:
int result = (2 - N) % 7;
return result < 0 ? result + 7 : result;
(See http://en.wikipedia.org/wiki/Modulo_operator for how the sign of result is determined for different la...
What is the purpose of the var keyword and when should I use it (or omit it)?
What exactly is the function of the var keyword in JavaScript, and what is the difference between
19 Answers
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Redirecting to a certain route based on condition
I'm writing a small AngularJS app that has a login view and a main view, configured like so:
11 Answers
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Container-fluid vs .container
Just downloaded 3.1 and found in the docs...
8 Answers
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AngularJS routing without the hash '#'
I'm learning AngularJS and there's one thing that really annoys me.
10 Answers
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Is there a way to crack the password on an Excel VBA Project?
...pdate some Excel 2003 macros, but the VBA projects are password protected, and it seems there's a lack of documentation... no-one knows the passwords.
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Constant Amortized Time
...erations". Amortised time doesn't have to be constant; you can have linear and logarithmic amortised time or whatever else.
Let's take mats' example of a dynamic array, to which you repeatedly add new items. Normally adding an item takes constant time (that is, O(1)). But each time the array is ful...
How can I avoid Java code in JSP files, using JSP 2?
I'm new to Java EE and I know that something like the following three lines
31 Answers
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How does Python's super() work with multiple inheritance?
I'm pretty much new in Python object oriented programming and I have trouble
understanding the super() function (new style classes) especially when it comes to multiple inheritance.
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Why do we check up to the square root of a prime number to determine if it is prime?
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If a number n is not a prime, it can be factored into two factors a and b:
n = a * b
Now a and b can't be both greater than the square root of n, since then the product a * b would be greater than sqrt(n) * sqrt(n) = n. So in any factorization of n, at least one of the factors must be smal...