. - , .
. ( ) y = f (x) , Dx xn xk. ](xk xn)/ Dx [+ 1 x , . ][ , .
. y (x) = x 2+ 1,5 x xn ≤ x ≤ xk Dx. x y.
9.13
. 9.13. −
](xk xn)/ Dx [ + 1. x, xn, ](xk xn)/ Dx [ + 1 y. , Dx. , .
: ( 4), ( 5), ( 8).
5, 6, 7 8. x.
, , , . 4, 5 8 4 (. 9.14), .
. 9.14. ,
9.14 4 . (. 9.15). . dx , dx = 1.
. 9.15.
.
9.9.
|
|
, (. 9.16):
. 9.16. 9.9
1. x 5, x =5. | |
2. y = x 2+2=52+2=27. 3. x = 5 y = 27. 4. x : x = x + 2 = 5 + 2 = 7. 5. x ≤ 10; x = 7, 7 ≤ 10; , , 5 2. | |
2. x = 7, y = x 2 + 2 = 72 + 2 = 51. 3. x = 7 y = 51. 4. x : x = x + 2 = 7 + 2 = 9. 5. x ≤ 10; x = 9, 9 ≤ 10; , , 5 2. | |
2. x = 9, y = x 2+2=92+2=83. 3. x = 9 y = 83. 4. x : x = x + 2 = 9 + 2 = 11. 5. x ≤ 10; x = 11, 11 ≤ 10; , , 5 . |
, ( ) y = f () = x 2+2. , Dx = 2 x n =5 xk = 10. ](xk xn)/ Dx [+ 1=3 x , . ( x y):
5 27
7 51
9 83
, , , λ.
2÷5 . x − . − 3.
(. 9.13) (. 9.14).
9.10.
, (. 9.17):
. 9.17.
.
1. Y 0, Y = 0. | |
2 . − (. 9.14, 4 .9.15), (i =1), i (i =4) (i =1). , i =1. 3. y y = y + i =0+1=1. 3 2. | |
2. 2, (. 9.15), i , i = i +1=1+1=2, i − i ≤ 4? 2 ≤ 4 , , 3 i. 3. y y = y + i = 1+2=3. 3 2. | |
2. i , i = i +1=2+1=3, i − i ≤ 4? 3 ≤ 4 , , 3 i. 3. y y = y + i =3+3=6. 3 2. | |
2. i , i = i + 1 = 3 + 1 = 4, i − i ≤ 4? 4 ≤ 4 , , 3 i. 3. y y = y + i =6+4=10. 3 2. | |
2. i , i = i+1=4+1=5, i − i ≤ 4? 5 ≤ 4 , , . 2 4. | |
4. y = 10. |
|
|
− 4.
, , y = 0+1+2+3+4.
y, , . , , .
9.11.
, a b ( 9.18):
. 9.18. 9.11
.
.
1. =1, b =1. | |
2. a = 4? 1 = 4? , , 3. 3. a = a +1=1+1=2, b = b + a =1+2=3. 3 2. | |
2. a = 4?, 2=4? , , 3. 3. a = a +1=2+1=3, b = b + a =3+3=6. 3 2. | |
2. a = 4? 3 = 4? , , 3. 3. a = a +1=3+1=4, b = b + a =6+4=10. | |
2 a=4? 4=4? , , . |
b 10, 4. . 3.