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5. Error Conditions Relating to Specific Tasks
1. Financial
* Define constants "r" and "s" as used in the equation below.
(
I (%)
+
r =
C/Y
100
1. I% calculation
1 If PMT = 0
1
-
(
)
n
PV
-
–
r =
1
FV
2 If PMT ≠ 0
+
+
f (r) = PV
(1
+
f (r) = PV
PMT
calculate the following for r solved in 1 and 2
×
I (%) = 100
C/Y
2. PV calculation
-
1 If r ≠ 0, r >
1
×
-
+
PV =
(1
r
s)
2 If r = 0
×
-
–
PV =
n
PMT
3 If r ≤
-
1
Error
{
C/Y
)
S = 1 (Pmt_Begin)
P/Y
–
1
1 ,
S = 0 (Pmt_End)
–
+
1
(1
r)
×
×
×
r
s)
PMT
r
×
+
n
FV: (r = 0)
P/Y
×
+
–
((r
1)
1)
C/Y
–
+
1
(1
r)
-
n
×
×
–
PMT
r
FV
}
-
-
n
n
+
+
: (r ≠ 0)
FV (1
r)
-
×
n
+
FV
(1
r)
Appendix
237
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