function [ xmin, xmax, nx, dx, c, t0, tstop ] = wave_parameters ( )

%*****************************************************************************80
%
%% wave_parameters() returns parameters for the wave PDE.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    03 May 2021
%
%  Author:
%
%    John Burkardt
%
%  Output:
%
%    real xmin, xmax: the interval limits, in meters.
%
%    integer nx, the number of equally spaced nodes in the interval.
%
%    real dx: the spacing between the nodes.
%
%    real c: the propagation speed, in units of meters/secont.
%
%    real t0: the initial time, in seconds.
%
%    real tstop: the final time, in seconds.
%
  c = 1.0;
  xmin = 0.0;
  xmax = 2.0 * pi;
  nx = 24 + 1;
  dx = ( xmax - xmin ) / ( nx - 1 );
  t0 = 0.0;
  tstop = 2.0 * pi;

  return
end

