HP 12C User Manual page 133

Keystrokes
(ALG mode)
:0
~
§
go
gi009
:2
gi010
:1
b
}
fs
Now, we'll store the required numbers in registers R
program, using Ç so that we can check that the branching occurs properly. It's
good practice with programs containing conditional test instructions to check that
the program branches correctly for all possible conditions: in this case, if the
income is less than, equal to, or greater than the test value.
Keystrokes
(RPN mode)
20000?0
20?1
25?2
15000
Ê
File name: hp 12c pt_user's guide_English_HDPMF123E27
Printed Date: 2005/8/1
Section 9: Branching and Looping
Display
002, 45 0
Recalls test value into X-register
and places income in Y-register.
003, 34
Places income in X-register and
test value in Y-register.
004, 20
Prepares for multiplication.
005, 43 34
Tests whether number in X-register
(income) is less than or equal to
number in Y-register (20,000).
006,43, 33, 009
If condition is true, branches to
program line 009.
007, 45 2
If condition is false, recalls 25%
tax rate to X-register.
008,43, 33, 010
Branches to program line 010.
009, 45 1
Recalls 20% tax rate to X-register.
010, 25
Divides tax rate by 100.
011, 36
Calculates tax.
–190.22
Sets calculator to Run mode.
(Display shows results of running
of previous program.)
, R
0
Display
20,000.00
Stores test value in register R
20.00
Stores 20% tax rate in register R
25.00
Stores 25% tax rate in register R
15,000.
Keys income less than test value
into display and X-register.
001, 45 0 Line 001: :0.
Page: 133 of 275
Dimension: 14.8 cm x 21 cm
133
, and R , then we'll run the
1 2
.
0
.
1
.
2