how to interchange array elements

my input is x=[11 12 13 14 15]. my output should be y=[15 12 13 14 11]. how to interchange particular values without disturbing other elements.?

Answer 1

[Andrei Bobrov]

x = [11 12 13 14 15];
y = x;
y([end,1]) = y([1,end]);

Answer 2

[Honglei Chen]

Not sure if this is what you are looking for, but here is one way to do it, as long as you know the order

y = x([5 2 3 4 1])

[Sivakumaran Chandrasekaran]

no. first element and last element should be interchanged is my objective..

[Cedric]

 y = [x(end), x(2:end-1), x(1)] ;