 a nominal vector. A particularly
 interesting case is when the generated vector should be drawn from a <a
 href="http://en.wikipedia.org/wiki/Multivariate_normal_distribution">
 Multivariate Normal Distribution</a>. The approach using a Cholesky
 decomposition is quite usual in this case. However, it can be extended
 to other cases as long as the underlying random generator provides
 <a href="../../../../../org/apache/commons/math3/random/NormalizedRandomGenerator.html" title="interface in org.apache.commo