[gmx-users] Normal mode eigenvalue units, nm^-2 ??

Nguyen Hoang Phuong phuong at theochem.uni-frankfurt.de
Wed May 18 17:08:11 CEST 2005

> In order to extract a frequency for a normal mode (re: eq 3.66 of the
> Gromacs manual) I'd like to know what unit the eigenvalues are in.
> My guess is nm^-2, which would sort of be consistent with other Gromacs
> units, but I couldn't find explicit confirmation in the manual.
>   Marc
yes if you are using non-mass-weighted NMA, otherwise the unit is
(nm* (unit of mass))^-2


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