Thanks for replying. I checked out the links, thanks again for them. However nothing looked like anything I can use.<p>In theory .NET can do a whole lot of things, but I have been waiting for this hole to be filled for a long time. So far there is nothing even remotely useful as Eigen, Armadillo and their ilk.<p>Heck, there isn&#x27;t even a standard sin, cos exp log etc. for floats. Not a place where a number-cruncher will feel at home.