plot, plotyy, semilogx, semilogy, loglog. , , plot(x,f,x,g). . hold on, . ( ) . :
, , , .
- -, (, u - -, v- -):
u = [-2*pi:0.1*pi:2*pi]';
v = [-2*pi:0.1*pi:2*pi];
X, Y, , . .
2
, N x M, .
- MatLab N . - b - . - - , . , = abT, . MatLab "". :
a = [1;2;3];
b = [5;6;7];
C = a*b'
C =
5 6 7
10 12 14
15 18 21
X, Y, :
X = 0.3*u*cos(v);
Y = 0.3*u*sin(v);
Z , X Y. , , . v, Z X Y . , z (u,v) , . Z , - , v, :
Z = 0.6*u*ones(size(v));
. :
[X,Y] = meshgrid(-2:0.1:2);
Z = 0.5*X+0.4*Y;
:
u = [-2*pi:0.1*pi:2*pi]';
v = [-2*pi:0.1*pi:2*pi];
X = 0.3*u*cos(v);
Y = 0.3*u*sin(v);
Z = 0.6*u*ones(size(v));
surf(X, Y, Z)
[X,Y] = meshgrid(-2:0.1:2);
Z = 0.5*X+0.4*Y;
hold on
mesh(X, Y, Z)
hidden off
hidden off , , .
, hold on . hold off. hold on , ,
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plot(x,f,,g)
plot(,f)
hold on
plot(x,g)
, :