Lecture 7.3. Wherein rotation matrix parametrization via Euler angles, roll-pitch-yaw, and axis-angles are introduced. Topics include forward forward and inverse kinematics with parametrization. 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.