Restricting the domain of a function plotted on Gnuplot

Question

I am plotting a set of data on Gnuplot, and want to superimpose the function x^2 on the same plot. I can do this like so:

plot \"filename\" usi         


        

Answer 1

I know that this is an old question, but for anyone who might be looking for an easier way:

Your first idea

plot "filename" using 1:2, [1:2] x**2

works now.