diff -r 55342d3c9d25 -r 7c4855fb8e5f advanced-features-functions/quickref.tex
--- a/advanced-features-functions/quickref.tex	Mon Oct 11 01:25:45 2010 +0530
+++ b/advanced-features-functions/quickref.tex	Mon Oct 11 11:40:04 2010 +0530
@@ -1,8 +1,8 @@
-Creating a linear array:\\
-{\ex \lstinline|    x = linspace(0, 2*pi, 50)|}
+\textbf{Advanced features of functions}
+
+Arguments of functions can have default arguments. 
 
-Plotting two variables:\\
-{\ex \lstinline|    plot(x, sin(x))|}
+All arguments with default arguments are at the end of the definition.
 
-Plotting two lists of equal length x, y:\\
-{\ex \lstinline|    plot(x, y)|}
+Functions can be called with keyword arguments. All the keyword
+arguments should be at the end of the argument list.