matlab matlab

matlab matlab

plot plot plotFigure x, y

plot

plot plot(x) x, x plot(x,y) y(x)ynmx mplot(x1,y1,x2,y2)

plot(x,y,s) s1~3 yellowyelplot(x1,y1,s1,x2,y2,s2)

S y m c r g b w k (--)

matlab:[ + | o | * | . | x | square | diamond | v | ^ | > | < | pentagram | hexagram ]

square diamond pentagram hexagram

1. 1x=[0, 0.48,0.84,1,0.91,0.6,0.14] [ x1, x2, x3, x4, x5, x6, x7,]plot (x)

2. 2t=0:pi/100:2*pi;y=sin(t);y1=sin(t+0.25);y2=sin(t+0.5);plot(t,y,t,y1,t,y2)

yy1y2

3y=sin(t);y1=sin(t+0.25);y2=sin(t+0.5);y3=cos(t);y4=cos(t+0.25);y5=cos(t+0.5);plot(t,[y',y1',y2',y3',y4',y5'])

y3=cos(t);y4=cos(t+0.25);y5=cos(t+0.5);plot(t,y3);hold on; plot(t,y4); plot(t,y5);

x=peaks;plot(x)x=1:length(peaks);y=peaks;plot(x,y)

3. subplot

subplot(m,n,p)

subplot(1,3,1); plot(t,y)subplot(1,3,2); plot(t,y3)subplot(1,3,3); plot(t,y2)

subplot(3,1,1);plot(t,y)subplot(3,1,2);plot(t,y3)subplot(3,1,3);plot(t,y2)

subplot('position',[left bottom width height])

4. figure(n) n t=0:pi/100:2*pi;y=sin(t);y1=sin(t+0.25);y2=sin(t+0.5);plot(t,y) figure(2)plot(t,y1) figure(3)plot(t,y2)

5. 4(2)plot(t,y,'r-',t,y1,'g:',t,y2,'b*')

6. title xlable x ylable y text gtext grid on(off) legend axis

t=0:0.1:10y1=sin(t);y2=cos(t);plot(t,y1,'r',t,y2,'b--');x=[1.7*pi;1.6*pi];y=[-0.3;0.8];s=['sin(t)';'cos(t)'];text(x,y,s);title('');legend('','')xlabel('t'),ylabel('')gridaxis square

246810t

axis axis([xmin xmax ymin ymax]) axis ([-2 2 0 5]) axis(equal) axis on(off) axis auto

7.fplot fplot:fplot(fun,lims) funx lims=[xmin xmax]fplot(fun,lims,'corline') [x,y]=fplot(fun,lims) ,plot(x,y)

plotloglogxysemilogxxysemilogyyxtitlexlabelxylabelytextgtextgridplot y . k o w x xb + +g * *r - c : m -. --

fplot('[sin(x),tan(x),cos(x)]',2*pi*[-1 1 -1 1])fplot('humps',[0 1],'rp')

8.ezplot ezplotezplot(f) fxx [-2*pi 2*pi]f(x)ezplot(f,xmin,xmax) ezplot(f,[xmin,xmax],figure(n))

ezplot('sin(x)')ezplot('sin(x)','cos(y)',[-4*pi 4*pi],figure(2))

fill fillx=[1 2 3 4 5];y=[4 1 5 1 4];fill(x,y,'r')

1MATLABsemilogx(x1,y1,1,x2,y2,2,)semilogy(x1,y1,1,x2,y2,2,)loglog(x1,y1,1,x2,y2,2,)5-11 y=10x2

2polarpolar(theta,rho,)thetarhoplot5-12 r=sin(t)cos(t)t=0:pi/50:2*pi;r=sin(t).*cos(t);polar(t,r,'-*');

bar errorbar fplot polar hist rose stairs stem fill feather compass quiver

bar polar hist stairs stem rose comet

errorbar compass () feather () quiver area pie convhull scatter

x=0:pi/20:2*pi;y=sin(x);stairs(x,y)

h2=[1 1;1 -1];h4=[h2 h2;h2 -h2];h8=[h4 h4;h4 -h4];t=1:8;subplot(8,1,1);stairs(t,h8(1,:));axis('off')subplot(8,1,2);stairs(t,h8(2,:));axis('off')subplot(8,1,3);stairs(t,h8(3,:));axis('off')subplot(8,1,4);stairs(t,h8(4,:));axis('off')subplot(8,1,5);stairs(t,h8(5,:));axis('off')subplot(8,1,6);stairs(t,h8(6,:));axis('off')subplot(8,1,7);stairs(t,h8(7,:));axis('off')subplot(8,1,8);stairs(t,h8(8,:));axis('off')

h2=[1 1;1 -1];h4=[h2 h2;h2 -h2];h8=[h4 h4;h4 -h4];t=1:8;for i=1:8subplot(8,1,i);stairs(t,h8(i,:))axis('off')end

t=0:2*pi/90:2*pi;y=cos(4*t);polar(t,y)

t=0:0.2:2*pi; y=cos(t); stem(y)

t=0:0.2:2*pi; y=cos(t); bar(y)

t= -pi:pi/500:pi; y=tan(sin(t))-sin(tan(t)); comet(t,y)

x=magic(6);area(x)

x=[1 2 3 4 5 6 7];y=[0 0 0 1 0 0 0];pie(x,y)

pie(x,y,{'North','South','East','West','middle','fa','white'})

load seamountscatter(x,y,50,z)

a=rand(200,1);b=rand(200,1);c=rand(200,1);scatter(a,b,100,c,'p')

[x,y,z]=sphere(20);

subplot(1,2,1);

surf(x,y,z);axis equal;

light('Posi',[0,1,1]);

shading interp;

hold on;

plot3(0,1,1,'p');text(0,1,1,' light');

subplot(1,2,2);

x=linspace(0,3*pi,100);

Z=[sin(x);sin(2*x);sin(2*x)];

Y=[zeros(size(x));ones(size(x))/2;ones(size(x))];

subplot(2,2,1)

plot3(x,Y,Z)

grid,xlabel('X-axis'),ylabel('Y-axis'),zlabel('Z-axis')

title('DefaultAz=-37.5,El=30')

view(-37.5,30)

subplot(1,2,1);

[X,Y,Z]=peaks(30);

waterfall(X,Y,Z)

xlabel('X-axis'),ylabel('Y-axis'),zlabel('Z-axis');

subplot(1,2,2);

contour3(X,Y,Z,12,'k'); %12

xlabel('X-axis'),ylabel('Y-axis'),zlabel('Z-axis');

[x,y]=meshgrid(-8:0.5:8);

z=sin(sqrt(x.^2+y.^2))./sqrt(x.^2+y.^2+eps);

subplot(2,2,1);

mesh(x,y,z);

title('mesh(x,y,z)')

subplot(2,2,2);

meshc(x,y,z);

title('meshc(x,y,z)')

subplot(2,2,1);

ezplot('x^2+y^2-9');axis equal

subplot(2,2,2);

ezplot('x^3+y^3-5*x*y+1/5')

subplot(2,2,3);

ezplot('cos(tan(pi*x))',[ 0,1])

subplot(2,2,4);

ezplot('8*cos(t)','4*sqrt(2)*sin(t)',[0,2*pi])

x=0:pi/50:2*pi;

y=sin(x);

z=cos(x);

plot(x,y,'r',x,z,'g'); %

Hl=get(gca,'Children'); %Hl

for k=1:size(Hl)

if get(Hl(k),'Color')==[0 1 0] %[0 1 0]

Hlg=Hl(k); %

4 1 plot3plotplot3(x1,y1,z1,1,x2,y2,z2,2,,xn,yn,zn,n) x,y,zplotx,y,zx,y,z x,y,zx,y,z

t=0:pi/100:20*pi;x=sin(t);y=cos(t);z=t.*sin(t).*cos(t);plot3(x,y,z);title('Line in 3-D Space');xlabel('X');ylabel('Y');zlabel('Z');grid on;

2 1MATLABmeshgridx=a:d1:b; y=c:d2:d;[X,Y]=meshgrid(x,y);XxyYyx

2surfmeshmesh(x,y,z,c)surf(x,y,z,c)x,y,zx,yzc

z=sin(x+sin(y))-x/10[x,y]=meshgrid(0:0.25:4*pi);z=sin(x+sin(y))-x/10;mesh(x,y,z);axis([0 4*pi 0 4*pi -2.5 1]);meshcmeshzmeshmeshcxyzmeshzxy

xy[-8,8][-8,8]4[x,y]=meshgrid(-8:0.5:8);z=sin(sqrt(x.^2+y.^2))./sqrt(x.^2+y.^2+eps);subplot(2,2,1);mesh(x,y,z);title('mesh(x,y,z)')subplot(2,2,2);meshc(x,y,z);title('meshc(x,y,z)')subplot(2,2,3);meshz(x,y,z)title('meshz(x,y,z)')subplot(2,2,4);surf(x,y,z);title('surf(x,y,z)')

3sphere[x,y,z]=sphere(n)cylinder[x,y,z]= cylinder(R,n)MATLABpeaks

t=0:pi/20:2*pi;[x,y,z]= cylinder(2+sin(t),30);subplot(2,2,1);surf(x,y,z);subplot(2,2,2);[x,y,z]=sphere;surf(x,y,z);subplot(2,1,2);[x,y,z]=peaks(30); surf(x,y,z);

bar3stem3pie3 fill3bar3bar3(y)bar3(x,y)

stem3stem3(z)stem3(x,y,z)pie3pie3(x)fill3fillfill3(x,y,z,c)

(1) (2) y=2sin(x)(3) x=[2347,1827,2043,3025](4)

subplot(2,2,1);bar3(magic(4))subplot(2,2,2);y=2*sin(0:pi/10:2*pi);stem3(y);subplot(2,2,3);pie3([2347,1827,2043,3025]);subplot(2,2,4);fill3(rand(3,5),rand(3,5),rand(3,5), 'y' )

subplot(1,2,1);[X,Y,Z]=peaks(30);waterfall(X,Y,Z)xlabel('X-axis'),ylabel('Y-axis'),zlabel('Z-axis');subplot(1,2,2);contour3(X,Y,Z,12,'k'); %12xlabel('X-axis'),ylabel('Y-axis'),zlabel('Z-axis');

5 1 MATLABviewview(az,el)azel-37.5,30

2 1MATLAB3[0,1]33RGB

2(Color map)MATLABMATLABm3 RGBMATLAB

3surfshadingshading faceted

shading flatshading interp

3[x,y,z]=sphere(20);colormap(copper);subplot(1,3,1);surf(x,y,z);axis equalsubplot(1,3,2);surf(x,y,z);shading flat;axis equalsubplot(1,3,3);surf(x,y,z);shading interp;axis equal

3 MATLABlight('Color',1,'Style',2,'Position',3)

[x,y,z]=sphere(20);subplot(1,2,1);surf(x,y,z);axis equal;light('Posi',[0,1,1]);shading interp;hold on;plot3(0,1,1,'p');text(0,1,1,' light');subplot(1,2,2);surf(x,y,z);axis equal;light('Posi',[1,0,1]);shading interp;hold on;plot3(1,0,1,'p');text(1,0,1,' light');

4 xy0[x,y]=meshgrid(-5:0.1:5);z=cos(x).*cos(y).*exp(-sqrt(x.^2+y.^2)/4);surf(x,y,z);shading interp;pause %i=find(x

6 1 1imreadimwriteimreadimwriteMATLABMATLAB.bmp.jpg.jpeg.tif

2imageimagesccolormap5-26 flower.jpg[x,cmap]=imread('flower.jpg'); %image(x);colormap(cmap);axis image off %

2 MATLABgetframemovieinmovie1getframegetframe()n

2movieinmoviein(n)nn3moviemovie(m,n)mn

peaksz[X,Y,Z]=peaks(30); surf(X,Y,Z)axis([-3,3,-3,3,-10,10])axis off;shading interp;colormap(hot);m=moviein(20); %20for i=1:20view(-37.5+24*(i-1),30) %m(:,i)=getframe; %mend movie(m,2); %2

plot3 plot3(x,y,z) x,y,zplot3(X,Y,Z) X,Y,Zplot3(x,y,z,s) plot3(x1,y1,z1,'s1', x2,y2,z2,'s2', )

axis([xmin xmax ymin ymax zmin zmax ]) grid on(off) text(x,y,z,string)

t=0:pi/50:10*pi;plot3(t,sin(t),cos(t),'r:')

() pie3([4 3 6 8 9])

fill3 = fill fill3(x,y,z,s)

5y1=rand(3,5);y2=rand(3,5);y3=rand(3,5);fill3(y1,y2,y3,'m');hold on;plot3(y1,y2,y3,'yo')

mesh mesh(z) znmxy mesh(x,y,z) x,,y,z

z=rand(6); 0.8808 0.0729 0.4168 0.7694 0.3775 0.4776 0.3381 0.7101 0.0964 0.6352 0.3826 0.7086 0.1895 0.8791 0.6747 0.8965 0.6876 0.2380 0.7431 0.3594 0.5626 0.8784 0.1217 0.3910 0.7189 0.0899 0.8130 0.4865 0.0768 0.9759 0.8792 0.1610 0.8782 0.1131 0.1433 0.6288z=round(z) 1 0 0 1 0 0 0 1 0 1 0 1 0 1 1 1 1 0 1 0 1 1 0 0 1 0 1 0 0 1 1 0 1 0 0 1

mesh(z)

mesh(z)

8hadamardh2=[1 1;1 -1];h4=[h2 h2;h2 -h2]h8=[h4 h4;h4 -h4] 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 -1mesh(h8)

[X,Y]=meshgrid(x,y) Z=X.^2+Y.^2XYnmX nY mZ37530nm

meshgrid z=f(x,y) x,yzz=x2+y2 x=-5:5; y=x; [X,Y]=meshgrid(x,y)

Z=X.^2+Y.^2

mesh(X,Y,Z)

colormap( [R,G,B]) matlab [RGB]m3r,g,b[0 1]matlab

[0 0 0] [0 0 1] [0 1 0] [0 1 1] [1 0 0] [1 0 1] [1 1 0] [1 1 1] [0.5 0.5 05] [0.5 0 0] [1 0.62 0.4] [0.49 1 0.8] [0.49 1 0.83]

surf z

surf(x,y,z) x,y,z [X,Y,Z]=peaks(30)peaksmatlabsurf(X,Y,Z)

surfc(X,Y,Z) [X,Y,Z]=peaks(30);surfc(X,Y,Z)

surfl(X,Y,Z) [X,Y,Z]=peaks(30);surfl(X,Y,Z)

cylinde(r,n) r nt1=0:0.1:0.9;t2=1:0.1:2;r=[t1 -t2+2];[x,y,z]=cylinder(r,30);surf(x,y,z);grid

20[x,y,z]=sphere(30);surf(x,y,z);

matlab colormap(MAP) MAPm3matlab

matlab hsv gray hot cool bone copper pink prism jet II flag

shading faceted

shading flat

shading interp

peaks(30);shading interp;colormap(hot)

[X,Y,Z]=peaks(30);surfl(X,Y,Z)shading interp;colormap(cool);axis off

peaks(30);colormap(hot);colorbar('horiz') figure(2);colormap(cool);

a. b.

p=peaks(30);mesh(p)hidden on

p=peaks(30);mesh(p);hidden off

p=peaks;p(30:40,20:30)=nan*p(30:40,20:30);surf(p)

p=peaks;p(30:40,20:30)=nan*p(30:40,20:30);mesh(peaks,p)

(view(az,el)) az ----el ---- az=-37.5; el=30z=peaks(40);subplot(2,2,1);mesh(z);subplot(2,2,2);mesh(z);view(-15,60);subplot(2,2,3);mesh(z);view(-90,0);subplot(2,2,4);mesh(z);view(-7,-10);

a. waterfall) waterfall(peaks(30))

y [x,y,z]=peaks; waterfall(x',y',z');

b. contour(Z,n)--------nC= contourc(Z,n)------nClable(c)------peaks10 contour(peaks,10);C=contourc(peaks,10);clabel(C)

contour3(peaks,20)

pcolor z=peaks(30)pcolor(z)

moviein getframe

[X0,Y0,Z0]=sphere(30); %X=2*X0;Y=2*Y0;Z=2*Z0; %2surf(X0,Y0,Z0); %shading interp %hold on; mesh(X,Y,Z);hold off %hidden off %axis off %

*n=10;t=n*pi*(0:0.0005:1);x=sin(t);y=cos(t);plot(x,y,'g'); hold on;comet(x,y,0.02);hold off

*R0=1;%a=12*R0;b=9*R0;T0=2*pi; %T0T=5*T0;dt=pi/100;t=[0:dt:T]';f=sqrt(a^2-b^2);%th=12.5*pi/180;%x-yE=exp(-t/20);%x=E.*(a*cos(t)-f);y=E.*(b*cos(th)*sin(t));z=E.*(b*sin(th)*sin(t));plot3(x,y,z,'g')%[X,Y,Z]=sphere(30);X=R0*X;Y=R0*Y;Z=R0*Z; %grid on,hold on,surf(X,Y,Z),shading interp%x1=-18*R0;x2=6*R0;y1=-12*R0;y2=12*R0;z1=-6*R0;z2=6*R0;axis([x1 x2 y1 y2 z1 z2]) %view([117 37]),comet3(x,y,z,0.02),hold off%