Sharp EL-5230 User Manual

You can use 27 variables (A-Z and θ) in the NORMAL mode. A number
stored as a variable can be recalled either by entering the variable name or
using t.

Store 2

3

 to variable R.

1.

Press j 2 1 then x.

• j clears the display.
• ALPHA appears automatically when you

press x. You can now enter any
alphabetic character or θ (written in blue
above keys in the keypad).

2.

Press R to store the result of 2

3

 in R.

• The stored number is displayed on the

next line.

• ALPHA disappears from the display.

You can also store a number directly
rather than storing the result of an expression.

Find the area of a circle which has radius R.

Enter an expression containing variable R (now equal to 8) from the last
example.

1.

Press j @ s then ;.

• Whenever you need to use a character

written in blue on the keypad, press
; beforehand. ALPHA will appear at
the above of the display.

2.

Press R and then A.

• ALPHA disappears after you have

entered a character.

2

S =

 πr

r

NORMAL MODE

            0.
2„Ò_

NORMAL MODE
            0.

π_

NORMAL MODE
            0.

πRŒ_

            0.
2„ÒR

            8.