Efficient MATLAB Code for Recursive Functions: Expert Tips and Tricks

[EngWiPy]

Hello,

I have the following equation, and I want to program it using MATLAB. But it is a recursive function, and it seems that I can not handle it well. So please if anyone can help, I will be thankful.

 

[MATLABdude]

I would suggest you create a 2D matrix of size k (whatever that happens to be / you choose it to be--maybe this is a parameter that your function takes in?), seed the initial values given, and then make copious use of the for or while loops in MATLAB:
http://www.mathworks.com/access/helpdesk/help/techdoc/learn_matlab/f4-1931.html#brbsthm
http://www.mathworks.com/access/helpdesk/help/techdoc/learn_matlab/f4-1931.html#brbstiw-1

 

[oswaler]

Hello,

Thank you for reaching out. Recursive functions can be tricky to handle in MATLAB, but there are some tips and tricks that can help make your code more efficient. Here are a few suggestions:

1. Preallocate variables: When using recursive functions, it is important to preallocate any variables that will be used in the function. This will save time and memory by avoiding unnecessary reallocations in each recursive call.

2. Use vectorization: MATLAB is optimized for vector operations, so try to use vectorization instead of loops whenever possible. This can greatly improve the speed and efficiency of your code.

3. Avoid global variables: Global variables can slow down recursive functions, so it is best to avoid using them if possible. Instead, pass any necessary variables as inputs to the function.

4. Use memoization: Memoization is a technique that stores previously calculated values in a cache, reducing the number of recursive calls and improving the overall performance of the function.

I hope these tips will help you in programming your recursive function in MATLAB. Good luck!