HP 12C Financial calculator User Manual

Page 99

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Section 8: Programming Basics

99

File name: hp 12c_user's guide_English_HDPMBF12E44

Page: 99 of 209

Printered Date: 2005/7/29

Dimension: 14.8 cm x 21 cm

Pressing the gu keys is not necessary when we do the calculations manually,
since in Run mode the result of every intermediate calculation is displayed
automatically; but we’ll include u instructions in the program so that the
intermediate results AMOUNT and TAX are automatically displayed when the
program is executed.

Keystrokes Display

6.75?0

6.75

Stores tax rate in R

0

.

fCLEAR²

0.00

Clears the registers in R

1

through

R

6

.

13

13.

Keys in quantity of item.

\

13.00

Separates quantity of item from
cost of item to be keyed in next.

68.5

68.5

Keys in cost of item.

§

890.50

AMOUNT.

?+1

890.50

Adds AMOUNT to sum of
AMOUNT entries in register R

1

.

:0

6.75

Recalls tax rate to display.

b

60.11

TAX.

?+2

60.11

Adds TAX to sum of TAX entries
in register R

2

.

+

950.61

TOTAL.

?+3

950.61

Adds TOTAL to sum of TOTAL
entries in register R

3

.

Now, we’ll store the program in program memory. Do not key in the quantity and
cost of each item; these numbers will vary each time the program is run.

Keystrokes Display

fs

00-

Sets calculator to Program
mode.

fCLEARÎ

00-

Clears program memory.

§

01-

20

gu

02-

43

31

Pauses to display AMOUNT.

?+1

03- 44 40 1

:0

04-

45

0

b

05-

25

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