Evaluating Expressions - HP 39G User Manual

Evaluating expressions

In aplets
In HOME
Aplets and their views
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
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).
You can also evaluate any expression in HOME by entering it
into the edit line and pressing
For example, define F4 as below. In HOME, type F4(9)and
press . This evaluates the expression, substituting 9 in
place of X into F4.
. If a function calls another
.
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