# Chapter 7 - Part 3

This is the content for Wednesday, March 11, 2026.

## Covered in this lecture

- Continuity and differentiability of convex functions: [D2L Video](https://d2l.msu.edu/d2l/le/lessons/2387926/topics/18644278), [MediaSpace](https://mediaspace.msu.edu/media/1_6bbdomsz)
- Extended real-valued functions: [D2L Video](https://d2l.msu.edu/d2l/le/lessons/2387926/topics/18644279), [MediaSpace](https://mediaspace.msu.edu/media/1_o4h64ort)
- Maxima of a convex function: [D2L Video](https://d2l.msu.edu/d2l/le/lessons/2387926/topics/18644280), [MediaSpace](https://mediaspace.msu.edu/media/1_my3ugvqz)

## Todos

### Before class

- Watch videos above.

### In class

- [Lec 7-3 Slides](Slides/Lec7_3-Slides.md)
- [Worksheet 7-3](WS/Lec7_3-WS.md)
  
### After class

- Upload worksheet to Crowdmark by 5pm.
- [Homework 3](../../../homework/HW3/HW3.md) due Friday, March 13!
<!-- - Due today: nothing -->