. . .
:
P , S , I ( ).
P________________S
T
i = I/P = (S-P)/P .
, ( ), .
:
1. , , , " ", 360 , 30 . , , .
2. , " ", 360 , . , , , .
3. , " ", . , , .
: , .
, d | / | |||
) | -1 | |||
) | -1 | |||
) | -1 |
. , , . .
, ( ), .
(accumulation), .. , . , . .
( ) . , . , , , :
|
|
I = S-P.
, :
I = (S-P) n = [ (S-P) / P P ] n = i P n,
i = ( S- P ) / P - .
, : , .
:
S = P + I = P + i P n = P (1 + i n) = P k .,
k () .
" ". , .
: , , " " , . :
= ( ) / 100 =
= ( P t ) / 100
" " , , " " , :
I = Σ : ,
= / = T / i
, , 365 , , (), 360.
:
S = P(1+n1i1+n2i2+) = P(1+Σntit),
it t,
nt t it.
4. . , : , .
, , , (discount): D = S-P
, .
, P ( ) S. , , , , , .
, , . , .
|
|
, :
;
.
:
:
i = (S-P) / P
:
d = (S-P) / Sn
, . , , , .
, , : , .
: , .
, , , , .
( ) , , .. . , , . . ( ) .
:
D = S-P = S n d = S t / T d,
n - .
: P = S - S n d = S (1 - n d),
(1 - n d) .
, , . , .. 360 , .
, , , : P 2 = P 1 (1 + n 1 i) (1 - n 2 d),
P 1 ;
P 2 , ;
n 1 ;
n 2 .