The description of parameters used to obtain data files.
The file cetaint*.out contains the data describing the interface.
The files x*.out and y*.out contain the coordinates for runs computed using
the Lagrangian coordinate system. 

The initial condition has no header, all subsequent time steps printed have
a one line head which begins
tstep= * 
where * is the number of the time step just completed. For many of these I
only printed every tenth time step. The data was written using
the following algorithm:
i loop
j loop
printf("stuff",eta(i,j));

In all cases, I used 
tol=1e-9;
ord=3;

I used n=64 for all runs as well.

where tol is the tolerance for computing the dipole sheet strength.
Ord is the order of the method.
In the following, k is the time step, z is the initial profile and 
phi is the initial velocity potential.

-----------------------
cetaintf321.out:

computed using fixed coordinate system.
k=pi/3000;
z=0.0;
phi=.5;

-----------------------
cetaintf64h0.out:

computed using fixed coordinate system with the fourier smoothing 
k=pi/300
z=0.0
phi=.5

-----------------------
cetaintf641.out:

computed using fixed coordinate system, with no smoothing
k=pi/300
z, phi given by stokes wave initial profile

------------------------
cetaintb64h2m.out

lagrangian method, with equal orthogonal coordinates, and smoothing factor.
k=pi/300
z, phi given by stokes wave initial profile.

------------------------
cetaintf64d1m.out

fixed coordinates, using subtraction smoothing
k=pi/300
z, phi given by stokes wave initial profile.

------------------------
cetaintb64gaumm.out

lagrangian coordinates, subtraction smoothing
k=pi/300
phi=0
z=.1*exp(-10*(x^2+y^2))
------------------------
cetaintb643d1m.out

lagrangian coordinates, Fourier smoothing with e-o coordinates and
smoothing factor.
k=pi/300
phi,z given by 3d stokes wave initial condition

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