What library are the Units in? I've looked on the boost web site under the 1.35.0 library documentation and the Units library doesn't show up.Hi, There are defined structs for angular_velocity, moment_of_inertia and angular_momentum as well as torque. Are you going to add angular_acceleration? Thanks PatAs requested, in the sandbox svn... Please test and verify that it works for you. Matthias _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users