Матричная лаборатория MatLab
представлены графики поверхностей
Пример 1
» [х.у]= meshgrid(-5:5.-4:4);
» U =x.*x+y.*y
U =
|
41 |
32 |
25 |
20 |
17 |
16 |
17 |
20 |
25 |
32 |
41 |
|
|
34 |
25 |
18 |
13 |
10 |
9 |
10 |
13 |
18 |
25 |
34 |
|
|
29 |
20 |
13 |
8 |
5 |
4 |
5 |
8 |
13 |
20 |
29 |
|
|
26 |
17 |
10 |
5 |
2 |
1 |
2 |
5 |
10 |
17 |
26 |
|
|
25 |
16 |
9 |
4 |
1 |
0 |
1 |
4 |
9 |
16 |
25 |
|
|
26 |
17 |
10 |
5 |
2 |
1 |
2 |
5 |
10 |
17 |
26 |
|
|
29 |
20 |
13 |
8 |
5 |
4 |
5 |
8 |
13
|
20 |
29 |
|
34 41 |
25
32 |
18
25 |
13
20 |
10
17 |
9
16 |
10
17 |
13 20 |
18
25 |
25
32 |
34 41 |
V =
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
||
|
1 |
1 |
1 |
1 1 |
1 1 1 |
1 |
1 |
1 |
» surfl(U)
» subplot(1,2,2)
» surfl(V)
На рис. 16. 1 представлены графики поверхностей U и V.
