--- a/basic-plot.txt	Fri Apr 02 19:23:13 2010 +0530
+++ b/basic-plot.txt	Fri Apr 02 19:30:17 2010 +0530
@@ -157,7 +157,7 @@
 In []: clf()
 
 A plot using dashed lines can be generated by passing the '--' parameter
-In []: plot(x, y, '--')
+In []: plot(x, sin(x), '--')
 
 You may look at more options related to colors and type of lines using plot?