Casio CFX-9850G PLUS, CFX-9850GB PLUS, CFX-9850GC PLUS, CFX-9950GB PLUS User Manual Page 354

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326
19-3 複利計算
此計算器使用下述標準公式計算複利
公式
W
I
PV+PMT × + FV
i(1+ i)
n
(1+ i)
n
(1+ i × S)[(1+ i)
n
–1] 1
= 0
i =
100
I
在此
PV= –(PMT t + FV t )
C
B
PV
現值
FV
終值
FV=
β
PMT × + PV
α
PMT
付款
n
複利計算
PMT=
β
PV + FV ×
α
I
%
年利率
利用
牛頓方法
計算得出i
S = 1
期限開始時的假設
S = 0
期限結束時的假設
n =
log
{ }
log(1+ i)
(1+ i S ) PMT+PVi
(1+ i S ) PMTFVi
i(1+ i)
n
(1+ i × S)[(1+ i)
n
–1]
=
α
(1+ i)
n
1
=
β
F(i) = 公式 I
+ (1+ i S)[n(1+ i)
n–1
]+S [1–(1+ i)
n
]
nFV (1 + i)
n–1
ii
PMT
(1+ i S)[1– (1+ i)
n
]
F(i)'=
[ ]
公式
W
II (I% = 0)
PV + PMT × n + FV = 0
在此
PV = – (PMT × n + FV )
FV = – (PMT × n + PV )
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