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Annotation of loncom/html/adm/help/tex/Spreadsheet_HowTo.tex, revision 1.3

1.1       matthew     1: \label{Spreadsheet_HowTo}
                      2: 
                      3: \textbf{Summing up columns}
                      4: 
                      5: To take the sum of column ``M'', for example, use \texttt{\&SUM(``M*'')}\index{SUM}
                      6: 
1.2       www         7: \textbf{Spreadsheet Lists}
1.1       matthew     8: When you have a list of numbers in a cell, how it is displayed depends
                      9: on how you separate the numbers and how Perl interprets the results.
                     10: 
                     11: \textbf{35 45 12} will not generate any result because this is an
1.3     ! webbsuza   12: invalid Perl statement.
1.1       matthew    13: 
                     14: \textbf{35,45,12} will have a result of 12 because Perl has a comma
                     15: operator similar to the comma operator\index{comma operator} in C.
                     16: 
                     17: The comma operator is binary and returns the value on its right. Thus
                     18: \texttt{\$variable = 15, 26;} assigns \texttt{\$variable} the value
                     19: 26.  If you need the values to all be displayed, enclose the entire
1.3     ! webbsuza   20: cell contents in quote marks.