HP 39g Graphing Calculator - Manual (Page 172)

Aplet variables
Aplet variables store values that are unique to a particular
aplet. These include symbolic expressions and equations (see
below), settings for the Plot and Numeric views, and the
results of some calculations such as roots and intersections.
See the Reference Information chapter for more information
about aplet variables.
Category Available names
Function FO to F9 (Symbolic view). See “Function
aplet variables” on page R-9.
Parametric XO, YO to X9, Y9 (Symbolic view). See
“Parametric aplet variables” on page R-10.
Polar RO to R9 (Symbolic view). See “Polar
aplet variables” on page R-11.
Sequence UO to U9 (Symbolic view). See “Sequence
aplet variables” on page R-12.
Solve EO to E9 (Symbolic view). See “Solve
aplet variables” on page R-13.
Statistics CO to C9 (Numeric view). See “Statistics
aplet variables” on page R-14.
To access an l. Open the aplet that contains the variable you want to
aplet variable recall.
2. Press pVARsl to display the VARS menu.
3. Use the aiTow keys to select a variable category in the left
column, then press to access the variables in the right
column.
4. Use the arrow keys to select a variable in the right
column.
5. To copy the name of the variable onto the edit line, press
Eaa. (lifdam is the default setting.)
6
. To copy the value of the
variable into the edit line,
press
and press
03.
Ymax
3.2
11-8 Variables and memory management