HP 39gs Graphing manual Evaluating expressions, Aplets, Select Function

Evaluating expressions

In aplets	In the Symbolic view, a variable is a symbol only, and
	does not represent one specific value. To evaluate a
	function in Symbolic view, press		. If a function calls
	another function, then	resolves all references to

other functions in terms of their independent variable.

1.Choose the Function aplet.

Select Function

2.Enter the expressions in the Function aplet’s Symbolic view.

A

B

F1

F2

3. Highlight F3(X).

4. Press

Note how the values for F1(X) and F2(X) are substituted into F3(X).

Aplets and their views 2-3