7.1 Excel ( ), N , S.
b, - i- ; d - i-o . i-ro (di) : di = bi*ci*N
=
Excel, . 2.
2 .
7.2 , N :
- ( , ) ;
- .
bik i- , k- ; bmax k, bmin k , k ; Sk ; P .
bmax k = max(bik) 1 < i < N; bmin k = min(bik) 1 < i < N.
S =
, .
3 .
, Excel.
. , n + 270 . ., 540 - . . , .
.
n :
n = = 40500 + 270n - 90 =
=
n :
n (540 0,3n) = 540n 0,3n2
:
, .
4 .
4-11 . B4-B7 = - 0,3*A4*A4 + 180*A4. B8-B11 = - 0,3*A8*A8 + 360*A8 - 81000.
ƒ(n) .
1 .
B12 , .
: , . Microsoft Windows. Microsoft Office.