[gmx-users] water model

[Parvez Mh]

Dear All:

Following is SPC/E water model from gromacs .itp file, Why does there
length/angle and  force constant twice in each row ?

[ bonds ]
; i    j    funct    length    force.c.
1    2    1    0.1    345000    0.1     345000
1    3    1    0.1    345000    0.1     345000

[ angles ]
; i    j    k    funct    angle    force.c.
2    1    3    1    109.47    383    109.47    383