I use a formula like this in my org table: #+TBLFM: $>=vmean($<<..$>>);%.3f However, when I export the org table to a latex file, there appears a line in the tex file like this: <<..\$>>(INVISIBLE) If I use #+TBLFM: $>=vmean($2..$>>);%.3f, the problem will disappear. I think this is caused by the functions in org-exp.el falsely identifies the formula as INVISIBLE target. By: Muchenxuan Tong