Calculating function output for more than one input variable

I have this function y = x^2/(sqrt(x^2+1.0)-1.0) and I want to calculate it for several values of x but I don't know how to do this at once. Now I do it this way:

x = 8^-1

y = x^2/(sqrt(x^2+1.0)-1.0)

and I get my result but I don't want to repeat this every time I change the value of x. Is there a way to declare more values at once?

Answer 1

[Azzi Abdelmalek]

x = [1 4 5 10 20]
y = x.^2./(sqrt(x.^2+1.0)-1.0)

[Beaya]

thank you!