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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@8481 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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pscrozi
2012-07-05 23:15:09 +00:00
parent 193e63f443
commit 65a4122ac3
2 changed files with 6 additions and 4 deletions
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5
doc/kspace_modify.html
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@ -121,8 +121,9 @@ PPPM method to compute forces on particles given electrostatic
potentials on the PPPM mesh. The ik approach is the default that
performs differentiation in kspace, but requires 3 FFTs to transfer
the computed fields back to real space. The analytic differentiation,
or ad approach requires only 1 FFT, but requires a somewhat bigger
PPPM mesh to achieve the same accuracy as the ik approach.
or ad approach requires only 1 FFT to transfer the computed fields
back to real space, but requires a somewhat bigger PPPM mesh to
achieve the same accuracy as the ik approach.
</P>
<P><B>Restrictions:</B> none
</P>

5
doc/kspace_modify.txt
View File

@ -115,8 +115,9 @@ PPPM method to compute forces on particles given electrostatic
potentials on the PPPM mesh. The ik approach is the default that
performs differentiation in kspace, but requires 3 FFTs to transfer
the computed fields back to real space. The analytic differentiation,
or ad approach requires only 1 FFT, but requires a somewhat bigger
PPPM mesh to achieve the same accuracy as the ik approach.
or ad approach requires only 1 FFT to transfer the computed fields
back to real space, but requires a somewhat bigger PPPM mesh to
achieve the same accuracy as the ik approach.
[Restrictions:] none