how to write a function for the inbuilt function perms without using perms nor any built-in MATLAB permutation functions; nor any built-in string manipulation functions in the solution?

So basically i have to write a function to replace the inbuilt function perms without obviously using perms in the solutions or any built-in MATLAB permutation functions; nor any built-in string manipulation functions in the solution.

[Rik]

Regarding the flag by Kegan Ferreira ("An employer ran into this and asked to take it down. Could you please remove this."):

I doubt an employer has any standing to require this. What reason did they give you?

Just in case you decide to edit away your question I will post a copy of it below (making you editing away the post pointless). If you provide a valid reason for deletion I will remove your question from my post.

how to write a function for the inbuilt function perms without using perms nor any built-in MATLAB permutation functions; nor any built-in string manipulation functions in the solution?

So basically i have to write a function to replace the inbuilt function perms without obviously using perms in the solutions or any built-in MATLAB permutation functions; nor any built-in string manipulation functions in the solution.

Answer 1

[Roger Stafford]

This is pretty clearly homework, so I doubt if anyone is going to state anything other than a hint. My own hint would be to write an appropriate recursion routine that can accept a vector, then run through that vector’s elements one at a time and for each one, call itself recursively with the remaining vector of elements for further like processing. End of hint.

[Steven Lord]

My hint would be that there's probably some pseudocode describing how to generate permutations in your textbook, and converting that pseudocode into MATLAB code probably isn't going to be that difficult.