* . ( ). . . ( ). ; ; . ( , , , , , , ) . y = ax2 + bx + c . - y = (ax + b)/(cx + d) ([1 6, 8.1 8.5, 8.7 8.9]; [2 7, 8.1 8.3, 8.5], [3, 8.1 8.5, 8.7, 8.8, 8.10 8.12, 8.14], [5, 4.1 4.5, 4.7, 4.8, 4.10 4.12, 4.14])
[0/0] ([1, 6, 3, 8.2]). , (8.3) , .
, . , .
, ([1, 6, 3, 8.8]). 60 , , .
9.
. . . . ([1 6, 9.1, 9.2]; [2 7, . 9]; [3, 7.7 7.9, 7.13] [5, 3.7 3.9, 3.13]).
y = f (x) , ( Δ x ) , .. dy = (x) dx. ([1 6, 9.1] [3, 7.4]).
.
( ). ,
y = f (u) dy = (u) du , u . .