I think I am under informed here. Isn't the matrix exponential normally computed using eigen decomposition? It seems from the series expansion that all that is involved is to exponentiate the diagonal in the eigen vector form.
Sent from my iPhone On May 28, 2013, at 11:18, Michael McCormick <mmccorm...@runbox.com> wrote: > Hi folks, > > I'm looking at a few linear algebra libraries for a Java project. I need to > implement clustering of a graph whose edge weights come from a matrix > exponential. I've noticed that, of the three major math libraries I've found > available in Java (JBLAS, Colt, Commons Math), only JBLAS offers a matrix > exponential function expm() similar to what is in Matlab. > > Unfortunately, JBLAS appears to be dormant and does not have Win64 support, > which is going to be a problem for 80% of users. > > I'm curious why this hasn't been included yet in Commons Math, or whether > there are plans to include it any time soon. Has anyone else found a > portable solution, short of writing the algorithm? This project will involve > control systems and a matrix exponential will be an important part of the > toolkit. > > Thanks! > > Mike > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > For additional commands, e-mail: user-h...@commons.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
