--- a/day1/session4.tex	Thu Nov 05 20:47:16 2009 +0530
+++ b/day1/session4.tex	Thu Nov 05 21:04:23 2009 +0530
@@ -79,7 +79,7 @@
 \author[FOSSEE] {FOSSEE}
 
 \institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
-\date[] {31, October 2009\\Day 1, Session 4}
+\date[] {31 October, 2009\\Day 1, Session 4}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %\pgfdeclareimage[height=0.75cm]{iitmlogo}{iitmlogo}
@@ -244,7 +244,7 @@
 
 In []: C[:,::2]
 Out[]: 
-array([[ 1,  2],
+xarray([[ 1,  2],
        [ 0,  0],
        [-1,  7]])