.
1. :
- ,
- ,
- ,
- ,
- .
2. .
3. .
1. .
2. .
3. .
4. .
5. .
6. .
7. .
8. .
9. .
10. .
1. .
.
.
5 .
2 .
2. .
| / | |||
| X | |||
| z=sin(x)cos(y) | -2 π 2 π | -2 π 2 π | |
| z=sin(x/2)cos(y) | -2 π 2 π | -2 π 2 π | |
| z=sin(2x)cos(y) | -2π 2 π | -2 π 2 π | |
| z = sin(x)cos(y/2) | -2 π 2 π | -2 π 2 π | |
| z = sin(x/2)cos(2y) | -2 π 2 π | -2 π 2 π | |
| z = sin(2x)cos(2y) | -2 π 2 π | -2 π 2 π | |
| z= (1+sin(x)/x)(sin(y)/y) | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)cos(y) | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)|cos(y)| | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)y | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)|y| | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)sin(y) | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)|sin(y)| | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)(1-y) | -2 π 2 π | -2 π 2 π | |
| z = (sin(x)/x)|y+0.5| | -2 π 2 π | -2 π 2 π |
1. . 2 , , , . , .
2. . . , , . fprintf().
|
|
|
3. . :
o X ,
o X , Z=f(X,Y),
o , .
4. :
, plot3(X,Y,Z),
, mesh(X,Y,Z),
, meshc(X,Y,Z),
, surf(X,Y,Z), , contour(X,Y,Z),
, contour3(X,Y,Z),
, surfi(X,Y,Z).
5. . ( ). :
- X - ,
- Y - ,
- Z - .
f = sin().
-2π. ..2π
% 1
%
N=40;
h=pi/20;
%
for n=1:2*N+1
if n==N+1 A(n)=1; else A(n)=sin(h*(n-N-1))/(h*(n-N-1));
end; end;
for n=1:2*N+1
for m=1:2*N+1 Z(n,m)=A(n)*A(m);
end; end;
%
[X,Y]=meshgrid([-N:1:N]);
% 1
figure(1); plot3(X,Y,Z);
% 2
figure(2); mesh(X,Y,Z);
% 3- 3
figure(3); meshc(X,Y,Z);
% 4
figure(4); surf(X,Y,Z);
% 5
figure(5); contour(X,Y,Z)
% 6
figure(6);
contour3(X,Y,Z)
% 7
figure(7); surfl(X,Y,Z)
% 2
% N=40; h=pi/20;
%
for n=1:2*N+1
if n==N+1 A(n)=1; else A(n)=sin(h*(n-N-1))/(h*(n-N-1)); end; end;
for n=1:2*N+1
for m=1:2*N+1 Z(n,m)=A(n)*A(m);
end; end;
%
[X,Y]=meshgrid([-N:1:N]);
% 1
subplot(3,3,1),plot3(X,Y,Z);
% 2 subplot(3,3,2),mesh(X,Y,Z);
%
% 3
subplot(3,3,3),meshc(X,Y,Z);
% 4
subplot(3,3,4),surf(X,Y,Z);
% 5
subplot(3,3,5),contour(X,Y,Z)
% 6
subplot(3,3,6),contour3(X,Y,Z)
% 7
subplot(3,3,7),surfi(X,Y,Z)
5
