## Course Materials

Any relevant course materials will be posted here.

• You can find the current errata for the book here (PDF).
• Zach’s work for SP3 can be found here (PDF).
• Jimie’s work for SP4 can be found here (JPG).
• Click “Evaluate” on the SageMathCell below to check out the hyperplane arrangement $\mathcal{H}(3)$. The hyperplanes $H_{1,2}, H_{1,3}, H_{2,3}$ have been colored red, green, and blue, respectively. The plane $x+y+z=0$ is also included and is colored purple. In addition, I’ve included the vector $(1,2,3)$ in orange to illustrate where the chamber corresponding to the intersection of the three positive half-spaces lies. After evaluating the cell, it may take a few seconds for the image to render. You can click and drag the image to move it around and you can zoom in and out.

## Exams

Below are links to the take-home portion of each exam.

• Exam 1 (take-home) (PDF). If you are interested in using LaTeX to type up your solutions, then you can obtain the .tex file for the exam here. (Due Wednesday, October 12)
• Exam 2 (take-home) (PDF). If you are interested in using LaTeX to type up your solutions, then you can obtain the .tex file for the exam here. (Due Wednesday, November 23)

# Dana C. Ernst

Mathematics & Teaching

Northern Arizona University
Flagstaff, AZ
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