Texas Instruments Calculator - Manual (Page 90)

86 Appendix — Reference Information
I/Y
=
where:
x
=
i
y
=
P/Y
P
C/Y
Gi
= 1 +
i Q k
where:
k
=0 for end-of-period payments
k
=1 for beginning-of-period payments
where:
i ƒ
0
N
= L( PV
+
FV
) P PMT
where:
i
=0
where:
i ƒ
0
PMT
= L( PV
+
FV
) P N
where: i =0
where:
i ƒ
0
PV
= L( FV
+
PMT Q N
)
where:
i
=0
100 C Y e
y x 1 + ( ) ln Ч ( )
1 – [ ] Ч ⁄ Ч
N
PMT G
i
FV i Ч – Ч
PMT G
i
PV i Ч + Ч
----------------------------------------------
 
 
ln
1 i + ( ) ln
---------------------------------------------------------- =
PMT
–i
G
i
----- PV
PV FV +
1 i + ( )
N
1 –
---------------------------- + × =
PV
PMT G
i
×
i
------------------------ FV –
1
1 i + ( )
N
-------------------
PMT G
i
×
i
------------------------ – Ч =