Casio fx-CP400 User Manual page 18

As shown in the above Example, you can input simple arithmetic calculations using either the keypad keys
or the soft keyboard. Input using the soft keyboard is required to input higher level calculation expressions,
functions, variables, etc. See Chapter 2 for more information about inputting expressions.
Tip:
In some cases, the input expression and output expression (result) may not fit in
the display area. If this happens, tap the left or right arrows that appear on the
display to scroll the expression screen and view the part that does not fit.
You can also change the display orientation to horizontal
(landscape) for easier-to-read display of long input formulas
and calculation results. See "Changing the Display
Orientation (Main Application Only)" (page 14).
k Editing Input
u To delete a single character
Move the cursor so it is directly to the right of the character you want to delete, and then press K. Each
press of K deletes one character to the left of the cursor.
Example: To change the expression 369 × × 2 to 369 × 2
1. c369**2
2. dK
After you make all of the changes you want, press E to calculate the result. To add more characters to the
calculation, press e to move the cursor to the end of the calculation, and input what you want.
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 insert new input into the middle of an existing calculation expression
Use d or e to move the cursor to the location where you want to insert new input, and then input what you
want.
Example: To change 30
1. c30x
2. dddds
3. ee)
u To replace a range of input with new input
After you drag the stylus across the range of input that you want to replace, enter the new input.
Example: To change "1234567" to "10567"
1. c1234567
2. Drag the stylus across "234" to select it.
3. 0
2 to sin(30) 2 (For input, use the keypad and the [Math1] soft keyboard set.)
Chapter 1: Basics 18