Casio fx-CG50 User Manual page 280

After drawing a graph, you can press !1(TRACE) to turn on trace and read calculation
results along the graph.
Each press of e while trace is turned on cycles the displayed value in the sequence: present
) → simple interest (
PV
value (
reverse direction.
Press J to return to the parameter input screen.
3. Compound Interest
This calculator uses the following standard formulas to calculate compound interest.
u PV, PMT, FV,
% ≠ 0
I
PV = – (α × PMT + PV = – (α × PMT +
PV + × PMT
–
FV =
% = 0
I
PV = ï (PMT × n + FV )
FV = ï (PMT
α = (1+ i × S) ×
{
0 .........Payment : End
(Setup Screen)
S =
1 .........Payment : Begin
(Setup Screen)
) → simple future value (
SI
n
β β × FV) × FV)
α
β
×
n + PV)
β
1 –
–n
β
(1 + i)
, =
i
SFV ). Pressing d cycles in the
PV + × FV β
PMT = –
α
(1+ iS) × PMT – FV × i
{
log
(1+ iS) × PMT + PV × i
n =
log (1+ i)
PV + FV
PMT = –
n
PV + FV
n = –
PMT
{
I%
............................... (P/Y = C/Y = 1)
100
i =
I%
(1+
100 × [C/Y ]
7-4
}
C/Y
P/Y
) –1 ..... (Other than
those above)