--- loncom/html/adm/help/tex/Calling_Functions.tex 2004/05/10 14:27:33 1.3 +++ loncom/html/adm/help/tex/Calling_Functions.tex 2011/01/16 22:10:52 1.5 @@ -5,24 +5,22 @@ you to manipulate these strings or numbe 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 available in LON-CAPA. You can see a complete list at -\ref{all functions table}. +\ref{all_functions_table}. For now, let's just look at some simple examples. % \begin{figure} -\begin{lyxcode} \$a~=~-3.0; \$b~=~\&sin(\$a); \$c~=~\&pow(3.0,~\&abs(\$a)); -\end{lyxcode} \caption{Some Function Calls\label{Some Function Calls Figure}} \end{figure} In the \textbf{Script} block, function names start with \textbf{\&}. Some -example function calls are shown in figure \ref{Some Function Calls Figure}. +example function calls are shown above. You can see that functions can take either variables, numbers, or the results of other function calls as parameters. The \texttt{\&sin} function returns the sine of an angle expressed in radians. \texttt{\&pow} raises the first