**svd_sphere_test**,
a MATLAB program which
calls svd_circle() to analyze the mapping of the unit sphere caused
by an arbitrary matrix A.

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

svd_sphere, a MATLAB program which analyzes a linear map of the unit sphere caused by an arbitrary 3x3 matrix A, using the singular value decomposition.

- svd_sphere_test.m calls all the tests.
- svd_sphere_test.sh runs all the tests.
- svd_sphere_test.txt the output file.

- svd_sphere_1.png a plot of the unit sphere.
- svd_sphere_2.png a plot of the image of the unit sphere.