Add 3 to the values of x that are even

x=[7 6 1 2 0 -1 4 3 -2 0]

how do I do this in smart short way?

Answer 1

[Friedrich]

Hi,

x(find(mod(x,2) == 0)) = x(find(mod(x,2) == 0)) + 3

or

ind = find(mod(x,2) == 0);
x(ind) = x(ind) + 3;

[Andrei Bobrov]

id = ~rem(x,2);

x(id) = x(id)+3

Answer 2

[Arash]

Thank you. It works !!

Answer 3

[Walter Roberson]

x = x + 3 * ~mod(x,2);