Force in table potentials

Hi all,

i have a question related to table potentials for using pair and bond
style table interactions. In the column of force the user should
introduce the values given by "F = -grad(U)" or Lammps changes the sign
of grad(U) internally??

Thanks so much in advance,


The force values in the table file should be negative
for an attractive force, and positive for repulsive.
I.e. they are treated as -grad(U).