MATLAB: How do you check if an inputed number is an array/vector or just 1 value

Question

Using function [a, b, c, d] = function_name(a,b,c,d)

I know that if it's an array, [] will be used in the input and the script will have to call a position of an array eg. y(1) or y(2)

If it's a discrete value it will just be y

Basically, instead of calling 1 value of a, i want to call 2 or more, etc

I don't know if that makes any sense, but it would be very helpful if someone could please just help me out.

Answer 1

You can use size to find the number of components in each variable, e.g.:

size(a)