a bit more cleanup of session 08

Author: PythonCHB

slides_sources/source/exercises/sparse_array.rst

@@ -20,7 +20,7 @@ Oftentimes, at least in computation programming, we have large arrays of data th
 
 These are referred to as "sparse" as the information in them is widely scattered, or sparse.
 
-Since they are mostly zeros, it can be memory an computationally efficient to store only the value that are non-zero.
+Since they are mostly zeros, it can be memory and computationally efficient to store only the value that are non-zero.
 
 But you want it to look like a regular array in user code.
 

slides_sources/source/index.rst

@@ -51,6 +51,7 @@ In This Course
     .. toctree::
         :maxdepth: 2
 
+        extra_topics
         exercises/index
         supplements/index
 

slides_sources/source/session08.rst

@@ -700,8 +700,11 @@ implement ``__add__``:
 
 .. rst-class:: centered
 
-[a more complete example may be seen :download:`here <../../Examples/Session08/vector.py>`]
+A more complete example may be seen in:
 
+Examples/Session08/vector.py
+
+or: :download:`here <../../Examples/Session08/vector.py>`
 
 .. nextslide:: Summary
 
@@ -908,16 +911,15 @@ Write a class for a sparse array:
 Homework
 ========
 
-reading:
-
-Lambda:
+.. rst-class:: left
 
-http://www.blog.pythonlibrary.org/2015/10/28/python-101-lambda-basics/
+  Reading:
 
-https://pythonconquerstheuniverse.wordpress.com/2011/08/29/lambda_tutorial/
+  Lambda:
 
+  http://www.blog.pythonlibrary.org/2015/10/28/python-101-lambda-basics/
 
-.. rst-class:: left
+  https://pythonconquerstheuniverse.wordpress.com/2011/08/29/lambda_tutorial/
 
   Complete the Circle class