Arithmetic Calculations With Constants; Recovering From Errors In Digit Entry - HP 0012C-90001 User Manual

Arithmetic Calculations With Constants

Arithmetic Calculations W
Arithmetic Calculations W Arithmetic Calculations W
Example: Example: At Permex Pipes a certain pipe fitting is packaged in quantities of 15, Example: Example:
75, and 250. If the cost per fitting is $4.38, calculate the cost of each package.
Keystrokes Keystrokes Keystrokes Keystrokes
15\
4.38
75
gF
250
gF
Another method for doing arithmetic calculations with constants is described on
page 177.

Recovering From Errors in Digit Entry

Recovering From Errors in Digit Entry
Recovering From Errors in Digit Entry Recovering From Errors in Digit Entry
Example: Example: Suppose you want to divide the total annual production for one of your Example: Example:
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 Keystrokes
Keystrokes Keystrokes
429000\
9987
z
gF
429000\
987z
Section 5: Addit Section 5: Additional Operating Features ional Operating Features
Section 5: Section 5: Addit Addit ional Operating Features ional Operating Features
ith Constants
ith Constants ith Constants
Display Display Display Display
15.00 Keys first quantity into calculator.
4.38 Keys unit cost into display.
65.70 Cost of a package of 15.
75.
Keys second quantity into display.
4.38
Recalls unit cost — which was last
number in display before
pressed — into display.
328.50
Cost of a package of 75.
250.
Keys third quantity into display.
4.38
Recalls unit cost into display again.
1,095.00
Cost of a package of 250.
Display Display
Display Display
429,000.00
9,987.
You haven't noticed your mistake
yet.
42.96 About 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.
434.65
The correct answer.
75 75
75 75
was