Since then, the original authors Richard I. Shrager, A.Jutan, Ray Muzic, and
Sean Brennan agreed to put it under the <A
HREF="http://www.gnu.org/licenses/gpl.html">GPL</A>. Matthias Jueschke tested
-the program using a non-linear optimisation <A
+the program using a non-linear optimization <A
HREF="http://www.itl.nist.gov/div898/strd/nls/nls_main.shtml">test suite</A>,
and was satisfied with the results.