Casio fx-115ES - Manual (Page 15)

E-13
Deleting a Character or Function
Example: To correct the expression 369
Ч Ч 12 so it becomes
369
× 12
LINE Insert Mode:
369**12
dd
Y
Overwrite Mode:
369**12
ddd
Y
Correcting a Calculation
Example: To correct cos(60) so it becomes sin(60)
LINE Insert Mode:
c60)
dddY
s
Overwrite Mode:
c60)
dddd
s
Inserting Input into a Calculation
Always use the insert mode for this operation. Use d or e to
move the cursor to the location where you want to insert new input,
and then input what you want.