Hi, is there any introduction to ublas available ? I'd like to access the matrix data directly in order to use LAPACK. How is the data for general matrices stored ? In columwise or rowwise order ?? Is the storage order for banded matrices the same as assumed by LAPACK ? Or has anybody wrapped LAPACK ??? Greetings, Uwe. PS: Can you send me a copy to your answers per email ? My standard newsserver gives me no access to this group.. -- Dr. rer. nat. Uwe Schmitt Computer science is no more about Computers, uwe.schmitt@procoders.net than astronomy is about telescopes. (Dijkstra) http://www.procoders.net