Community Tip - When posting, your subject should be specific and summarize your question. Here are some additional tips on asking a great question. X
I'd like to suggest vectorizing the functions num2str and str2num.
I've had to write vectorized versions of these two functions to allow me to evaluate array expressions as arguments (I can't explicitly vectorize over num2str or str2num when using such expressions).
What evaluation reasons might there be that would mitigate against vectorizing these functions?
Stuart