Sharp el-9950 - Page 239

238
Appendix
3. FV calculation
1
If r
≠
0, r >
-
1
1 – (1 + r)
-n
r
PV
+ (1 + r × s) × × PMT
(1 + r)
-n
FV = –
2
If r = 0
FV=
-
n
×
PMT
–
PV
3
If r
≤
-
1
Error
4. PMT calculation
1
If r
≠
0, r >
-
1
1 – (1 + r)
-n
r
PMT = –
(1 + r × s) ×
PV
+ FV × (1 + r)
-n
2
If r = 0
PMT = –
PV + FV
n
3
If r
≤
-
1
Error
5. N calculation
1
If r
≠
0, r >
-
1
log (1 + r)
log
N = –
1
r
× (1 + r × s) × PMT – FV
1
r
× (1 + r × s) × PMTPV +
{}
2
If r = 0
N = –
FV + PV
PMT
3
If r
≤
-
1
Error