Lending    33 
Given the term of the mortgage (in years), the annual percentage rate, the loan amount, 
the percentage that the payments increase, and the number of years that the payments 
increase, the following HP 12C Platinum program determines the monthly payments and 
remaining balance for each year until the level payment is reached. 
 
 
 
 
 
12c platinum / 12C
RPN KEYSTROKES
DISPLAY 
12c platinum 
ALG KEYSTROKES 
DISPLAY 
fs 
 
fs 
 
fCLEARÎ 
000, 
fCLEARÎ 
000,          
g 
001,   43   8
g 
001,   43   8 
?2 
002,   44   2
?2          
002,   44   2 
~ 
003,       34
~ 
003,       34 
1 
004,        1
b 
004,       25 
b 
005,       25
+ 
005,       40 
1 
006,        1
1                
006,        1 
+ 
007,       40
³ 
007,       36 
?0 
008,   44   0
y 
008,       22 
:n 
009,   45  11
?0          
009,   44   0 
:2 
010,   45   2
:n 
010,   45  11 
- 
011,       30
- 
011,       30 
gA 
012,   43  11
:2          
012,   45   2 
:¼ 
013,   45  12
³ 
013,       36 
gC 
014,   43  12
gA 
014,   43  11 
:$ 
015,   45  13
:¼ 
015,   45  12 
?3 
016,   44   3
gC 
016,   43  12 
1 
017,        1
:$ 
017,   45  13 
Þ 
018,       16
?3          
018,   44   3 
P 
019,       14
?4          
019,   44   4 
$ 
020,       13
1                
020,        1 
Þ 
021,       16
P 
021,       14 
M 
022,       15
$ 
022,       13 
1 
023,        1
Þ 
023,       16 
gA 
024,   43  11
M 
024,       15 
:P 
025,   45  14
1                
025,        1 
:0 
026,   45   0
gA 
026,   43  11 
z 
027,       10
:P 
027,   45  14 
P 
028,       14
§ 
028,       20 
$ 
029,       13
:0          
029,   45   0 
Þ 
030,       16
P 
030,       14 
M 
031,       15
$ 
031,       13 
1 
032,        1
Þ 
032,       16 
?+1 
033,44 40   1
M 
033,       15 
:1 
034,   45   1
1                
034,        1 
:2 
035,   45   2
?+1      
035,44 40   1 
- 
036,       30
:1          
036,   45   1