Creating an Icon table
Creating an Icon table |
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The Icon function ``table()'' creates a new table.
table()'' with no arguments creates an empty
table.
table(x)'' creates a table in which
all entries are assumed to have value x until otherwise
defined.
With the first form shown above, a reference to an element that has never been defined causes an error. If a table created with the second form, and then you refer to an element that has never been defined, you will get value x.
For example, this code
phoneTable := table();
creates an empty table, while this code
totalsTable := table ( 0 );
makes ``totalsTable'' a table in which every element is
assumed to be 0 until it is changed to some other value.