Don't use recursion for factorials or Fibonacci numbers. One problem with computer-science textbooks is that they present silly examples of recursion. The typical examples are computing …

May 13, 2015 · Tail Call Recursion. Once you understand how the above recursion works, you can try to make it a little bit better. Now, to find the actual result, we are depending on the …

Apr 5, 2009 · Why, yes, recursion can be replaced with iteration, but often recursion is more elegant. Let's talk about trees. In computer science, a tree is a structure made up of nodes , …

It is a guard against a stack overflow, yes. Python (or rather, the CPython implementation) doesn't optimize tail recursion, and unbridled recursion causes stack overflows. You can check the …

Mar 19, 2009 · Recursion is used to express an algorithm that is naturally recursive in a form that is more easily understandable. A "naturally recursive" algorithm is one where the answer is …

Nov 20, 2012 · And here the for loop takes n/2 since we're increasing by 2, and the recursion takes n/5 and since the for loop is called recursively, therefore, the time complexity is in (n/5) * …

Sep 25, 2014 · Personally, I do not like the factorial problem. I find it hard to understand and I do not think it explains recursion in a clear way. So lets look at a different example. Lets say that …

Nov 30, 2012 · Recursion. A method can call itself, this is recursion. Recursive implementations of methods are often used, because they lead to compact elegant code, which is easier to …

Oct 17, 2012 · Mostly recursion is better (when it actually is) because it makes an implementation much simpler and less error-prone, and errors are by far the biggest cost in computing. (But of …

Feb 3, 2015 · The max recursion depth can be checked by the code. import sys; sys.getrecursionlimit(). On my system, it's 1000. So this will run 1000 times and then stop. …