gnuplot and plotting equations

[Anna L. <mol...@ya...>]

Dear gnuplot users, 

I have an enquiry related to equations; for instance, I would like to plot the 12-6 lennard-jones equation
 

with r=1, sigma =1 and global cutoff rc= 1.12

I'd appreciate any help and advice. I am a self-taught student, and apologise if this question is trivial.

with best wishes,
A