Executing code repeatedly with a recursion
In this video, I introduce two strategies to implement an iteration logic. In general, iteration it the repeated execution of a block of code. We can achieve that with either a recursion or a looping strategy. In a recursion, we define a function that calls itself from within its body, and has a "way out". Looping strategies are implemented with either a for- or a while-loop. As an example, we create a function that models a simple countdown until a party begins (e.g., "3 2 1 Happy New Year!"). We do so with both a recursive and a looping approach. Then, we compare the two implementations with Python Tutor and see how in the recursive case the same function is being executed several times in parallel, which is not the case for the looping version.
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The lecture is based on the free book "Introduction to Python & Programming".
Get it on GitHub: https://github.com/webartifex/intro-t...
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Alexander Hess, PhD Student
WHU - Otto Beisheim School of Management, Vallendar, Germany
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