--- a/day1/exercise/four_plot.py	Sun Jun 20 22:55:05 2010 -0700
+++ b/day1/exercise/four_plot.py	Sun Jun 20 22:59:53 2010 -0700
@@ -1,4 +1,4 @@
-x=linspace(-5*pi, 5*pi, 500)
+x = linspace(-5*pi, 5*pi, 500)
 plot(x, x, 'b')
 plot(x, -x, 'b')
 plot(x, sin(x), 'g', linewidth=2)