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E-20
dd
Y
Overwrite Mode
b
369**12
ddd
Y
A
Editing a Key Operation within an Expression
With the insert mode, use
d
and
e
to move the cursor to the right of the key operation
you want to edit, press
Y
to delete it, and then perform the correct key operation. With the
overwrite mode, move the cursor to the key operation you want to correct and then perform
the correct key operation.
Example: To correct cos(60) so it becomes sin(60)
Insert Mode
Bb
c
60)
ddd
Y
s
Overwrite Mode
b
c
60)
dddd
s
A
Inserting Key Operations into an Expression
Be sure to select the insert mode whenever you want to insert key operations into an
expression. Use
d
and
e
to move the cursor to the location where you want to insert the
key operations and then perform them.