Chapter 15: CATALOG, Strings, Hyperbolic Functions 272
sub(
sub( returns a string that is a subset of an existing string. string can be a string or a string variable.
begin is the position number of the first character of the subset. length is the number of characters in
the subset.
sub(string,begin,length)
Entering a Function to Graph during Program Execution
In a program, you can enter a function to graph during program execution using these commands.
Note: When you execute this program, enter a function to store to Y3 at the ENTRY= prompt.
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