RRGKinematix4 c/c++语言构建机器人模型，能够进行机器人的各种计算，正逆运动学，正逆动力学、运动规划等-RRGKinematix4 c/c++ language to build robot model, the robot can be a variety of terms, forward and inverse kinematics, inverse dynamics, motion planning, etc.

利用微分法算出机器人动力学模型的雅克比矩阵-jacobn matrix