Sharp EL-5250 0. 2„ÒR, NORMAL MODE 0. π NORMAL MODE 0. πRŒ, Using variables, Normal Mode, Example

Chapter 1: Before You Get Started

Using variables

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.

Example 1

Store 23 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).

NORMAL MODE 0.

2„Ò_

2.Press R to store the result of 23 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.

0. 2„ÒR

8.

Example 2

Find the area of a circle which has radius R.

r

S = πr2

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.

NORMAL MODE 0. π_

NORMAL MODE 0. πRŒ_

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