**pendulum_double_ode_movie**,
a MATLAB code which
simulates the behavior of the double pendulum problem,
and creates a corresponding movie.

Copyright (c) 2010, Alexander Erlich; All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

**pendulum_double_ode_movie** is available in
a MATLAB version.

cavity_flow_movie, a MATLAB code which animates the velocity solutions for the driven cavity;

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cvt_2_movie, a MATLAB code which animates the generation of a Centroidal Voronoi Tessellation (CVT) in the unit square, which includes a random "rebirth" at every iteration.

cvt_3_movie, a MATLAB code which animates the generation of a Centroidal Voronoi Tessellation (CVT) for the "holey pie" region.

cvt_4_movie, a MATLAB code which creates a Centroidal Voronoi Tessellation (CVT) movie in a square, with a density function that drives points to the corners;

cvt_corn_movie, a MATLAB code which makes a movie in which the growth of a corn kernel is simulated using a Centroidal Voronoi Tessellation (CVT).

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peak_movie, a MATLAB code which creates a sequence of frames, and then an animation or movie from the data displayed by the peaks() function.

pendulum_double_ode, a MATLAB code which defines the double pendulum ordinary differential equation (ODE).

pendulum_double_ode_movie_test

shallow_water_1d_movie, a MATLAB code which solves the partial differential equation (PDE) known as the shallow water equations (SWE), converting the solutions to a sequence of graphics frames, which are then assembled into a movie.

spiral_pde_movie, a MATLAB code which solves a pair of reaction-diffusion partial differential equations (PDE) over a rectangular domain with periodic boundary condition, whose solution is known to evolve into a pair of spirals. The sequence of solutions is bundled into a movie.

tetrahedron_slice_movie, a MATLAB code which is given a tetrahedron and a vector, displays an evenly spaced sequence of planes that intersect the tetrahedron and are normal to the vector, and creates a movie of the process.

Original MATLAB code by Alexander Erlich; modifications by John Burkardt.

- pendulum_double_deriv.m, returns the right hand side of the double pendulum ODE.
- pendulum_double_movie.m, solves the double pendulum system for a particular set of initial conditions and parameters, and saves the results in a movie.
- pendulum_double_parameters.m, returns the parameters of the double pendulum ODE.
- s_escape_tex.m, protects string characters from being interpreted as TeX commands.