[gmx-users] Time varying electric field - phase term

[steven shawn]

Thanks for your reply Johnny Lu. That is a very good point. But I have not
seen any sin Electric field. Can gromacs generate sin Electric fields too?


On Tue, Aug 26, 2014 at 8:33 PM, Johnny Lu <johnny.lu128 at gmail.com> wrote:

> I wonder if gromacs can do both sine and cosine?
>
> If so, the sum angle formula can work.
>
>
> http://en.wikipedia.org/wiki/List_of_trigonometric_identities#Angle_sum_and_difference_identities
>
>
>
> On Sat, Aug 23, 2014 at 10:42 AM, steven shawn <shawnsteven1 at gmail.com>
> wrote:
>
> > Dear gromacs users, I am trying to use an electric field which is varying
> > with time. I read the previous posts and successfully generated time
> > varying electric field with E-xt, E-yt and E-zt.
> >
> > but I need an electric field which has an initial phase term (ie. of the
> > form E= E0cos(2*pi*f*t+some angle term)) where i want to specify the
> angle
> > term. Most of the posts i read mentioned this angle term must be
> specified
> > in the third term after E-xt.
> > I tried it but failed to generate an initial phase. Can anyone help me
> with
> > this?
> >
> >
> > thanks in advance.
> > --
> > Gromacs Users mailing list
> >
> > * Please search the archive at
> > http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before
> > posting!
> >
> > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
> >
> > * For (un)subscribe requests visit
> > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or
> > send a mail to gmx-users-request at gromacs.org.
> >
> --
> Gromacs Users mailing list
>
> * Please search the archive at
> http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before
> posting!
>
> * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
>
> * For (un)subscribe requests visit
> https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or
> send a mail to gmx-users-request at gromacs.org.
>