# Lecture 4

This lecture still covers Homology :O

- **Reading:** DW 2.4-2.5
- **Slides:** [Lecture 4 slides pdf](04.pdf)
- **Notebook:** [Lecture 4 Jupyter notebook](4_student.ipynb)
- **Python helper:** [Lecture 4 helper](lecture4_helpers.py)
- **Annotated slides:** [Lecture 4 annotated slides](04Annotated.pdf)
<!-- - **Files for class:** download the notebook from this page before class. -->