function [ g, l, m, t0, y0 ] = pendulum_nonlinear_parameters ( )

%*****************************************************************************80
%
%% pendulum_nonlinear_parameters: parameters for the nonlinear pendulum ODE.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    08 November 2020
%
%  Author:
%
%    John Burkardt
%
%  Output:
%
%    real G: the gravitational constant, in meters/second^2;
%
%    real L: the pendulum length in meters;
%
%    real M: the pendulum mass, in grams.
%
%    real T0: the initial time, in seconds;
%
%    real Y0(2): the initial values, in radians, and radians per second.
%
  m = 1.0;
  g = 9.8;
  l = 1.0;
  m = 1.0;
  t0 = 0.0;
  u0 = 70.0 * pi / 180.0;
  v0 = 0.0;
  y0 = [ u0, v0 ];

  return
end

