HP 48g Graphing Calculator - Manual (Page 260)

Operations in the Selection Environment
Key Description
RULES Selects a menu of relevant rearrangement
transformations for the specified subexpression.
EDIT Returns the specified subexpression to the command
line for editing.
t. >■ ; h-' R Highlights the specified subexpression.
SUB Returns the specified subexpression to level 1 of the
stack.
Replaces the specified subexpression with the algebraic
in level 1 of the stack. (See “Replacing a Subexpression
with an Algebraic Object” on page 7-12.)
C. cS 1 1 Exits the Selection environment, restoring the entry
mode cursor at the end of the equation.
®o
Moves the selection cursor to the next object in the
®(E)
indicated direction. When prefixed with |f^, moves
the selection cursor to the farthest object in the
indicated direction.
Highlights the specified subexpression (just like
EX PR ), but is also active when the RULES menu is
displayed.
20
The RULES menu may include transformations that aren’t applicable
to the specified subexpression—such menu keys produce a beep. After
you execute a transformation, the selection cursor highlights the new
top level object. The RULES menu is removed whenever you press
any of the following keys:
(Q (A] Q (to return to the Selection
menu), (ENTER 1, or fCANCEL).
The tables on the next several pages describe the Rules
transformations and show examples. However, the tables do not
include all patterns for which transformations are applicable.
20-20 Calculus and Symbolic Manipulation