92 Section 5: Additional Operating FeaturesRecovering From Errors in Digit Entry

Example: Suppose you want to divide the total annual production for one of your firm’s products (429,000) by the number of retail outlets (987) in order to calculate the average number distributed by each outlet. Unfortunately, you mistakenly key in the number of outlets as 9987 rather than as 987. It’s easy to correct:

Keystrokes (RPN mode)

429000\

9987

z

gF

429000\

987z

Display

429,000.00

9,987. You haven’t noticed your mistake yet.

42.96About 43 products per outlet — but that seems too low!

9,987.00 Recalls to the display the number that was there before you press z. You see that you keyed it in wrong.

429,000.00 Begins the problem over.

434.65The correct answer.

File name: hp 12c pt_user's guide_English_HDPMF123E27

Page: 92 of 275

Printed Date: 2005/8/1

Dimension: 14.8 cm x 21 cm