.. _week9: Week 9 - 10/14 --------------- **Reading:** * 6.10. :ref:`orthogonal` * 6.11. :ref:`projection` * 6.12. :ref:`underdetermined` **Video Lectures:** * `Sectuin 6.10 - Orthogonal Matrix Decompositions `_ (10:20) * `Section 6.11 - Over-determined Systems and Vector Projections Part 1 `_ (20:21) * `Section 6.11 - Over-determined Systems and Vector Projections Part 2 `_ (8:08) * `Section 6.11.4 - A Statics Problem Solved with Projections `_ (15:38) * `Section 6.12 - Under-determined Systems - 2024 `_ (24:20) **Annotated notes:** * Statics Problem with Vector Projection - :download:`notes/ProjectionHW.pdf` * Under-determined Systems and RREF - :download:`notes/S6_6_UD_RREF.pdf` * Under-determined Systems and RREF example - :download:`notes/RREF.pdf` **Assignments:** * :ref:`rectangularHW` * `Rectangular Martrix Homework video `_ (32:49) * :ref:`projectionHW` * `Video: Projection of Static Force Vectors assignment `_ (12:11) * Attendance Quizzes: AQ06_11, AQ06_12, :ref:`AQweek9`