Simple Forward Kinematics library for robotic chains

Heavily commented functions to plot robotic arms and compute forward kinematics.

This submission consists of simple and straight forward functions that plots robotic arm configurations and computes forward kinematics transformation matrices. The user has to simply specify the DH parameter matrix (the standard defined in craig's Introduction to Robotics book)
The file contains 5 functions and 1 example.

Feel free to modify add and improve on the code.