Hi, I proposed a library for solving ordinary differential equations some months ago. Since this time, we have worked a lot on this topic and we would like to start a discussion about the needs and the design of the library. The library odeint ("odeint" comes from integration of ordinary differential equations ) can be found in the sandbox and some preliminary documentation is also available: http://svn.boost.org/svn/boost/sandbox/odeint/ http://svn.boost.org/svn/boost/sandbox/odeint/libs/numeric/odeint/doc/html/i... One of our main aims is the independence on a specific container or array type, such that the library can work with ODEs defined on arbitrary topologies, like networks, lattices , grids, etc. So, any comments on this library are highly welcome, as well as contributions (of any kind). Best regards, Karsten