SR-56 Sinking Fund Program - Interest Rate Known

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This program is taken from the SR-56 Applications Book, by Texas Instruments.

This will solve for the N, FV, and PMT components of the Time Value of Money equation given 2 of those three variables and the periodic interest rate. This program deals with problems that have a future value in them rather than a present value.
Remember: The periodic interest rate is NOT the annual rate. For TVM problems involving a present value, see: SR-56 Present Values

Instructions:
1) Clear memories. 2nd Cms.
2) Load known values (you need to enter the interest rate and two of the other three) into data memories. Periodic Interest Rate, STO 1, Future Value STO 2, Payment per period, STO 3, Number of periods STO 4.
3) Calculate the unknown value by pressing RST, R/S. The unknown variable is automatically calculated and displayed.


Program Listing:
Line  Keycode  Instruction
00      15       CLR
01      32       X <> T
02      49       FIX
03      02       2
04      34       RCL
05      01       1
06      54       /
07      02       2
08      19       10^X
09      94       =
10      33       STO
11      00       0
12      34       RCL
13      04       4
14      37       X = T
15      07       7
16      00       0
17      52       (
18      01       1
19      84       +
20      34       RCL
21      00       0
22      53       )
23      45       Y^X
24      34       RCL
25      04       4
26      74       -
27      01       1
28      94       =
29      54       /
30      34       RCL
31      00       0
32      37       X = T
33      05       5
34      04       4
35      94       =
36      33       STO
37      03       5
38      20       1/X
39      33       STO
40      06       6
41      34       RCL
42      03       3
43      37       X = T
44      06       6
45      00       0
46      64       *
47      34       RCL
48      05       5
49      94       =
50      33       STO
51      02       2
52      41       R/S
53      42       RST
54      15       CLR
55      34       RCL
56      04       4
57      20       1/X
58      33       STO
59      06       6
60      34       RCL
61      02       2
62      64       *
63      34       RCL
64      06       6
65      94       =
66      33       STO
67      03       3
68      41       R/S
69      42       RST
70      34       RCL
71      00       0
72      54       /
73      34       RCL
74      03       3
75      64       *
76      34       RCL
77      02       2
78      84       +
79      01       1
80      94       =
81      13       LNX
82      33       STO
83      04       4
84      01       1
85      84       +
86      34       RCL
87      00       0
88      94       =
89      13       LNX
90      12       INV
91      30       PROD
92      04       4
93      34       RCL
94      04       4
95      41       R/S
96      42       RST

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