Dear R forumers, Wondering if anyone knows of a package that can solve the lyapunov matrix equation C=ACA^T + B in R? Currently I am exporting to Mathematica, solving and bringing the results back in, but this is not ideal. Can R do this? Thanks in advance, Allen -- View this message in context: http://n4.nabble.com/Lyapunov-matrix-equation-tp1008389p1008389.html Sent from the R help mailing list archive at Nabble.com.