.. _week7:

Week 7 - 9/30
---------------

**Agenda for this week:**

    We begin the topic of linear algebra this week, which is the most
    significant topic of the course. So there is more lecture material
    (91:41), which is still less than 3 hour long lectures.

**Reading:**


    * 6.1. :ref:`vector_work`

    * 6.2. :ref:`matrix_work`

    * 6.3. :ref:`transforms` -- skip

    * 6.4. :ref:`systemEq`

    * 6.5. :ref:`elimination`

**Video Lectures:**

    * `Section 6.2.1 - Matrix Math - 2024
      <https://mediasite.k-state.edu/mediasite/Play/c96693f194574282ab50e30383b258ca1d>`_
      (20:22)

    * `Section 6.2.2 - Special Matrices - 2024
      <https://mediasite.k-state.edu/mediasite/Play/9830091ea4104d8384a40946d2395d611d>`_
      (17:30)

    * `Section 6.2.3 - Special Matrix Relationships - 2024
      <https://mediasite.k-state.edu/mediasite/Play/e8aab5019464435aa9ccbe8dce59368a1d>`_
      (13:32)

    * `Section 6.2.4 - Determinant
      <https://mediasite.k-state.edu/mediasite/Play/b4e669b431144e9abecf3738e999e9da1d>`_
      (11:20)

    * `Sections 6.2.5 and 6.2.6 - Matrix Inverse and Rank
      <https://mediasite.k-state.edu/mediasite/Play/d0acad285119420a89a55e0dc2999afa1d>`_
      (6:15)

    * `Section 6.2.7 - Cross Product
      <https://mediasite.k-state.edu/mediasite/Play/8afcd704030b4079b5c740728192517b1d>`_
      (3:44)

    * `Section 6.4 - Systems of Linear Equations - 2024
      <https://mediasite.k-state.edu/mediasite/Play/60125c52ef7848ee8c958d9649539b761d>`_
      (15:00)

    * `Section 6.4.5 - The Row and Column View - 2024
      <https://mediasite.k-state.edu/mediasite/Play/86b614104895489a915c2c24e7c613d81d>`_
      (9:19)

    * `Section 6.5 - Elimination - 2024
      <https://mediasite.k-state.edu/mediasite/Play/41e288f8be8e4b3eb0bf04b6f779878c1d>`_
      (17:38)

    * `Section 6.5.3 - Elimination to find the Matrix Inverse - 2024
      <https://mediasite.k-state.edu/mediasite/Play/1af9ce43bdde43d283e5b0d0746370b11d>`_
      (8:14)


**Annotated notes:**

    * Section 6.1 - Introduction to linear algebra and vectors 
      :download:`notes/S6_1_vectors.pdf`

    * Section 6.2 - Working with Matrices
      :download:`notes/S6_2_matrices.pdf`

    * Wall fallowing vectors - :download:`notes/Wall-fallow-vectors.pdf`

    * Matrices from in class - :download:`notes/Matrices.pdf`

    * Determinant - :download:`notes/Determinant.pdf`

    * Change of Coordinate Frame - :download:`notes/Change-coord.pdf`

    * Systems of Equations - :download:`notes/S6_4_Systems_Eq.pdf`

    * Elimination - :download:`notes/Elimination.pdf`

    * Column View of Systems of Equations - :download:`notes/Column-View.pdf`

**Assignments:**

    * Skip - :ref:`Change_coordsHW`

    * :ref:`MatrixHW`, :ref:`matrixHints`

    * Attendance Quizzes: AQ06_1, AQ06_2, AQ06_4, :ref:`AQweek7`