Lecture 3.4. Wherein forward and inverse kinematic maps are introduced in the context of a two-link robot. These maps are framed in terms of robot workspace and configuration space. This lecture was recorded at Saint Martin's University in the Spring 2021 term as part of the course lrpk (see the course website http://ricopic.one/courses/robotics-p.... It is the property of the instructor Dr. Rico Picone.