**stochastic_diffusion_test**,
a C++ code which
calls stochastic_diffusion(), which
implement several versions of a stochastic diffusivity coefficient,
using GNUPLOT to create graphic images of sample realizations of
the diffusivity field.

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

stochastic_diffusion, a C++ library which implements several versions of a stochastic diffusivity coefficient, and displays sample results using gnuplot.

- stochastic_diffusion_test.cpp, calls all the tests.
- stochastic_diffusion_test.sh, runs all the tests.
- stochastic_diffusion_test.txt, the output file.

The test program makes a set of command and data files that can be used by GNUPLOT to create graphic images.

- bnt_data.txt, the graphics data file.
- bnt_commands.txt, the GNUPLOT command file.
- bnt_contour.png, a plot of the diffusivity as a function of X and Y.
- elman_data.txt, the graphics data file.
- elman_commands.txt, the GNUPLOT command file.
- elman_contour.png, a plot of the diffusivity as a function of X and Y.
- ntw_data.txt, the graphics data file.
- ntw_commands.txt, the GNUPLOT command file.
- ntw_contour.png, a plot of the diffusivity as a function of X and Y.
- xk_data.txt, the graphics data file.
- xk_commands.txt, the GNUPLOT command file.
- xk_contour.png, a plot of the diffusivity as a function of X.