Fix tiny error in session3 slide.

Also add a section to quickref on imshow/imread/colorbar.

2 files changed, 9 insertions, 1 deletions

diff --git a/scipy/basic/quickref.tex b/scipy/basic/quickref.tex
index 87dc5cc..adfaba4 100644
--- a/scipy/basic/quickref.tex
+++ b/scipy/basic/quickref.tex
@@ -276,6 +276,13 @@ def f(y, t):
 
 {\ex \typ{data = csv2rec('data.csv')}} from csv to record array
 
+\hr\textbf{Basic image processing}
+
+{\ex \typ{from pylab import imread, imshow, colorbar}}\\
+{\ex \typ{a = imread('lena.png')}}: a is a NumPy array\\
+{\ex \typ{imshow(a)}}\\
+{\ex \typ{colorbar()}}\\
+
 \hr\textbf{3D plotting with Mayavi's \typ{mlab}}
 
 {\ex \typ{from mayavi import mlab}}  Ready to Go!\\
diff --git a/scipy/basic/session3.tex b/scipy/basic/session3.tex
index cd6958b..2de9b05 100644
--- a/scipy/basic/session3.tex
+++ b/scipy/basic/session3.tex
@@ -533,7 +533,7 @@ This is what our intention is.
 
 Or
 
-\[T_sq = A \cdot p \]
+\[T_{sq} = A \cdot p \]
 
 \end{frame}
 
@@ -648,6 +648,7 @@ In []: img = random.random(
   ...: )
 In []: clf()
 In []: imshow(img)
+In []: colorbar()
 \end{lstlisting}
 \end{frame}