how to display in one variable the max of each one of two arrays?

a=[5 10 15]
b=[20 25 30]
c= ?

Answer 1

[James Tursa]

c = [max(a) max(b)];

Answer 2

[Star Strider]

Concatenate the vectors inside the max function call:

a = [5 10 15];
b = [20 25 30];
c = max([a; b], [], 2)

c =
    15
    30