I know this might be a really stupid question, but to convert a crystal lattice 2D representation to a 2D reciprocal lattice do you justdo you just invert the scaling. I know this is a pretty poor explanation so I will try and illustrate what I mean. Let's say that you have a reciprocal lattice like the one below: . 020 . 120 . 220 . 010 . 110 . 210 . 000 . 100 . 200 |----| . 25 nm^-1 Is the crystal lattice just a similar drawing with the spacing inverted, that is, 4 nm??? By the way the above diagram is meant to have the vertical and horizontal spacings equal so they are both 0.25 nm^-1. I'm sorry but I just haven't really found anything on this at all and I'm preparing for my test this week. The only example question I could find was converting from reciprocal lattice to crystal lattice, but I imagine the process will be the same if you were trying to convert from crystal lattice to a reciprocal lattice. Thanks for any assistance.