The cube root example and the percentage addition example (previous topics) are two simple examples of chain calculations.

For another example, calculate

7 x (12 + 3)

Start the calculation inside the parentheses by finding 12 + 3. Notice that you don’t need to press Eto save this intermediate result (15) before proceeding. Since it is a calculated result, it is saved automatically－without using parentheses.

Keys:

Display:

Description:

12 E3 + 

Intermediate result.

7 *



Pressing the function key

 

 

produces the answer.

Now study these examples. Note the automatic storage and retrieval of intermediate results.

To Calculate:

Press:

 

 

Display:

(750 x 12) ⎟ 360

750

E12 *360 /



360 ⎟ (750 x 12)

360

E750 E12 */ 

 

or

 

 

 

 

 

750

E12

*360 x/

 

{(456－75) ⎟ 18.5}

456

E75

-18.5 /68

x (68 ⎟ 1.9)

E1.9

/*



(3＋4) x (5＋6)

3 E4

+5 E6 +*



D: RPN: Summary 267

File name : English-M02-1-040308(Print).doc Print data : 2004/3/9