How can I make an array with a function that defines every element?

I would like to make an array theta_i=(theta_1, theta_2, .., theta_n) such that I can define a function theta_j=1/j for all j. So the result would be: theta_i=(1, 1/2, 1/3, ..., 1/n) for some n.

Answer 1

[Adam]

You don't need a function, just

1 ./ theta_i

will do

[Jan]

Or to be exact:

theta = 1 ./ (1:n)

Answer 2

[Pritesh Shah]

for i=1:lenth(theta_i)

y(i)=1/i;

end