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u To delete an unneeded key operation
Use dand e to move the cursor to the location immediately to the right of the key
operation you want to delete, and then press K. Each press of K deletes one
command to the left of the cursor.
Example: To change the expression 369 × × 2 to 369 × 2
(1) c369**2
(2) dK
Tip
•You can move the cursor without using the cursor key by tapping at the destination with the
stylus. This causes the cursor to jump to the location where you tap.
u To correct a calculation expression
Use d and e to move the cursor to the location immediately to the right of the location
you want to correct, and then press K.
Example: To correct cos(60) so it becomes sin(60)
(1) Use the mathematics (mth) keyboard to input “cos(60)”.
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(2) Move the cursor to the location immediately to the right of “cos(”.
ddd
(3) Delete “cos(”.
KKKK
(4) Input “sin(”.
s
(5) Tap I to return to the initial math (mth) key set. See “Using the Math (mth)
Keyboard” on page 1-6-8 for details.
Tip
•Or, drag your stylus across “cos(” to select it and input “sin(”.
After you make all of the changes you want, press E to calculate the result. To continue
inputting the calculation, press e to move the cursor to the end of the calculation, and input
what you want.
1-6-5
Input
Tapping the T key causes it to
change to I and displays a key set
for inputting trigonometric functions.