# Jacobian of mobile manipulator

 I want to calculate the Jacobian of a mobile manipulator (MM). The MM consists of the moving mobile platform and manipulator on top of it. I am familiar with the Analytical and the Geometrical Jacobian. The first one I can find by differentiating the coordinates (w.r.t. an inertial frame) of the End Effector by each joint variable and the second one (from Siciliano): ​ https://preview.redd.it/430budrnzgr61.png?width=468&format=png&auto=webp&s=dfac2a018c732d3c3ff9d11a78cfbb01915ffae8 Also the geometrical and analytical Jacobians are the same on a planar manipulator. Obviously a MM is not planar. I want to use the Jacobian to model the interaction forces of the manipulator’s end effector. I guess we always need the Geometrical Jacobian for that but I have seen the analytical one also be used but I do not know when you can do that (maybe only on planar manipulators?) I am modelling an unknown number of manipulator links (n links) and because I solve everything on Matlab I need a systematic approach. submitted by /u/ptheolo [link] [comments]