: , , .
3.1.
x+ 3lg(x) y 2 = 0
2 x 2 xy 5 x + 1=0
.
.
1.
(. 3.1).
2. (. 3.2)
( ,
, )
Graph (. 3.3.).
n = 100
x min = 1 x max = 5 y max = 5 y min = 1
i = 0 n j = 0.. n
g(x,y) = 2 x 2 xy 5 x +1
M i,j = g(xi, yj) N i,j = q (xi, yj)
. 3.1.
. 3.2.
. 3.3. Graph
.
4. :
= 3.4 = 2.2
5. ,
x + 3lg(x) y 2 = 0
2 x 2 xy 5 x + 1 = 0
. 3.4. -,
6. (. 3.5.),
( F ,
,
- ).
. 3.5. ,
, (. 3.6), , . , . . , = 3,487
= 2,262.
F =
8,502 | 5,365 | 3,986 | 3,545 | 3,488 | 3,487 | 3,487 | 3,487 | |
5,573 | 3,475 | 2,578 | 2,298 | 2,262 | 2,262 | 2,262 | 2,262 | |
-19,771 | -4,522 | -0,857 | -0,087 | 1,452·10-3 | 4,367· 10-7 | 997· 10-14 | ||
55,679 | 13,1 | 2,568 | 0,265 | 4,435·10-3 | 1,333· 10-6 | 137· 10-13 |
. 3.6. ,
7. (. 3.7), F:
F 1 = F
. 3.7.
8. Given...Minerr ( . 3. 8).
= 3,4 = 2,2 Given
|
|
+ 3log(x) y 2 = 0
2 x 2 xy 5 x + 1 = 0
Z = Minerr (x, y
.3.8.
Mathcad
3
3.1.
(. 3.1) .
3.1.
5 | |||
4
: , , , , - .
4.1.
, , = 1000.
.
1. f (x), [ a, b ]
.
2.
(. 4.1).
a = 0 b = 1 n = 10C
dif
. 4.1.
, : , b ; ; char left, , (. 4.2).
, .
. 4.2. , ,
.
:
Integr(a, b, n, left) = Integr(a, b, n, right) =
4.2.
,
, n = 1000.
.
, : a, b ; n . iEven iUneven (. 4.3.).
Simpson(a, b, n) =
4.3. ,
, , 0,285714286. , .
4.3.
, (1.6.16), = 1000.
.
, , . 4.4.
|
|
.4.4. ,
.
4.4.
3.4.
, , = 1000000.
.
. 4.5.
, 1,6·10-4.
a = 0 b = 1 n = 1000000
i = 0..n
xi = a + (b a) · md(1)
I = 0,285550681
. 4.5.
1. ?
2. .
3. ?
4. .
5. ?
6. .
7. ?
8. .
9. ?
10.
?
11.
h?
12.
?
13. .
14. .
4
4.1.
f (x) [ a, b ] , ,
,
1000 ,
: ,
.
, .
4.1.
F (x) | [ a, b ] | |
[0; 3] | ||
sin(2 x 2 + 1) | [0; 1] | |
[1; 2] | ||
[2; 3] | ||
[0; 0,5] | ||
2,6 · x 2 · ln x | [1,2; 2,2] | |
(x 2 + 1) · sin (x 0,5) | [0,5; 1,5] | |
[2; 3] | ||
3 x + ln x | [1; 2] | |
3 x 2 + tg x | [-0,5; 0,5] | |
[0,1; 1,1] | ||
[-2; 0] | ||
[0; 1] | ||
[3; 5] | ||
[2; 3] | ||
[-1; 0] | ||
[0; 3] | ||
ex ·sin(x 2) | [0; 5] | |
[-3; -1] | ||
[0; 1] | ||
[4; 5] | ||
[0; 3] | ||
[0,1; 1,1] | ||
[1; 2] | ||
[1,5; 2,5] | ||
[1; 7] | ||
[0; 1] | ||
[0; 9] | ||
[4; 10] | ||
[0; 6] | ||
[0; 3] | ||
[0; 8] | ||
[2; 5] | ||
[0; π] | ||
(x 5)2 (10 x) | [0; 10] | |
[2; 4] | ||
[0; 2] | ||
[0; π / 2] |
5