afeld
diff --git a/Diff for: ‎extras/environment.yml
+1 b/Diff for: ‎extras/environment.yml
+1
diff --git a/Diff for: ‎lecture_4.ipynb
+58-4,461 b/Diff for: ‎lecture_4.ipynb
+58-4,461
@@ -37,6 +37,7 @@ dependencies:
   # needed for plotly
   # https://plotly.com/python/getting-started/#jupyterlab-support
   - ipywidgets>=7.6
+  - matplotlib
 
   ## CI ##
   - jinja2