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version 1.6, 2011/12/02 17:42:01	version 1.7, 2013/07/05 18:30:40
Line 4 With variables, you can store strings or	Line 4 With variables, you can store strings or
you to manipulate these strings or numbers. Functions work like mathematical	you to manipulate these strings or numbers. Functions work like mathematical
functions: They take some number of arguments in, and return one argument,	functions: They take some number of arguments in, and return one argument,
usually a number or a string for our purposes. There are a lot of functions	usually a number or a string for our purposes. There are a lot of functions
available in LON-CAPA. You can see a complete list at	available in LON-CAPA. You can see a complete list in the Script section
\ref{Script_Functions}.	\ref{Script_Functions} and LON-CAPA function section \ref{Problem_LON-CAPA_Functions}.

For now, let's just look at some simple examples.	For now, let's just look at some simple examples.