1安装word安装matlab2.在matalb的commond窗口输入notebook–setup然后按回车3.输入notebook即可启动word4，输入matlab命令如pi然后选中（单行可以不选中）后按下alt+D组合键，变绿色，如下所示5.再按下ctrl+Enter键，执行，出现蓝色结果或者图片。如下所示以下介绍几个matlab基本的操作命令，然后重点写了几个绘图命令（绿色为输入，蓝色为输出）pians=3.1416vpa(pi,100)ans=3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117068symsxf;f=@(x)100*(x(2)-x(1)^2)+(1-x(1))^2f=@(x)100*(x(2)-x(1)^2)+(1-x(1))^2x=[12],f(x)x=12ans=100y=[21];f(y)ans=-299x=linspace(0,2*pi,30);y=sin(x);z=cos(x);plot(x,y,'r',x,z,'go')01234567-1-0.8-0.6-0.4-0.200.20.40.60.81ezplot('sin(x)',[0,5*pi])051015-1-0.500.51xsin(x)ezplot('cos(t)^3','sin(t)^3',[0,2*pi])-1-0.500.51-0.8-0.6-0.4-0.200.20.40.60.8xyx=cos(t)3,y=sin(t)3ezplot('exp(x)+sin(x*y)',[-2,0.5,0,2])xyexp(x)+sin(xy)=0-2-1.5-1-0.500.500.20.40.60.811.21.41.61.82myfun2=@(x)exp(2.*x)+sin(3.*x.^2)myfun2=@(x)exp(2.*x)+sin(3.*x.^2)plot(-1:0.01:2,myfun2(-1:0.01:2))-1-0.500.511.520102030405060fplot(myfun2,[-1,2]);-1-0.500.511.520102030405060fplot('tanh',[-2,2])-2-1.5-1-0.500.511.52-1-0.8-0.6-0.4-0.200.20.40.60.81sn=@(x)sin(1./x);fplot(sn,[0.01,0.1])0.010.020.030.040.050.060.070.080.090.1-1-0.8-0.6-0.4-0.200.20.40.60.81fplot('[tanh(x),sin(x),cos(x)]',2*pi*[-11])-6-4-20246-1-0.8-0.6-0.4-0.200.20.40.60.81x=logspace(-1,2);loglog(x,exp(x),'-s')gridon10-110010110210010101020103010401050t=0:pi/50:10*pi;plot3(sin(t),cos(t),t)rotate3d-1-0.500.51-1-0.500.51010203040x=-3:0.1:3;y=1:0.1:5;[X,Y]=meshgrid(x,y);Z=(X+Y).^2;surf(X,Y,Z)shadingflatx=-3:0.1:3;y=1:0.1:5;[X,Y]=meshgrid(x,y);Z=(X+Y).^2;mesh(X,Y,Z)[X,Y]=meshgrid(-3:.125:3);Z=peaks(X,Y);meshz(X,Y,Z)x=linspace(0,2*pi,30);y=sin(x);plot(x,y)xlabel('自变量X')ylabel('函数Y')title('示意图')gridon01234567-1-0.8-0.6-0.4-0.200.20.40.60.81X自变量Y函数示意图x=linspace(0,2*pi,30);y=sin(x);z=cos(x);plot(x,y,x,z)gtext('sin(x)');gtext('cos(x)')01234567-1-0.8-0.6-0.4-0.200.20.40.60.81sin(x)cos(x)x=linspace(0,2*pi,30);y=sin(x);z=cos(x);plot(x,z,':')holdonplot(x,y)01234567-1-0.8-0.6-0.4-0.200.20.40.60.81x=linspace(0,2*pi,100);y=sin(x);z=cos(x);plot(x,y);title('sin(x)')01234567-1-0.8-0.6-0.4-0.200.20.40.60.81sin(x)figure(2);plot(x,z);title('cos(x)');01234567-1-0.8-0.6-0.4-0.200.20.40.60.81cos(x)x=linspace(0,2*pi,100);y=sin(x);z=cos(x);a=sin(x).*cos(x);b=sin(x)./(cos(x)+eps);subplot(2,2,1);plot(x,y),title('sin(x)')subplot(2,2,2);plot(x,z),title('cos(x)')subplot(2,2,3);plot(x,a),title('sin(x)cos(x)')subplot(2,2,4);plot(x,b),title('sin(x)/cos(x)')02468-1-0.500.51sin(x)02468-1-0.500.51cos(x)02468-0.500.5sin(x)cos(x)02468-100-50050100sin(x)/cos(x)clear;clc;clf;x=linspace(0,2*pi,30);y=sin(x);plot(x,y)zoomon01234567-1-0.8-0.6-0.4-0.200.20.40.60.81x=-3:0.1:3;y=1:0.1:5;[X,Y]=meshgrid(x,y);Z=(X+Y).^2;subplot(2,2,1),mesh(X,Y,Z),subplot(2,2,2),mesh(X,Y,Z),view(50,-34)subplot(2,2,3),mesh(X,Y,Z),view(-60,70)subplot(2,2,4),mesh(X,Y,Z),view([0,1,1])closeall;[x,y,z]=peaks(30);surf(x,y,z)axis([-33-33-1010])m=moviein(15);fori=1:15view(-37.5+24*(i-1),30)m(:,i)=getframe;endmovie(m)theta=linspace(0,2*pi);rho=sin(2*theta).*cos(2*theta);polar(theta,rho,'g');title('Polarplotofsin(2*theta).*cos(2*theta)');0.10.20.30.40.53021060240902701203001503301800Polarplotofsin(2*theta).*cos(2*theta)clfloadseamountscatter(x,y,5,z)210.8210.9211211.1211.2211.3211.4211.5211.6211.7211.8-48.45-48.4-48.35-48.3-48.25-48.2-48.15-48.1-48.05-48-47.95[X,Y]=meshgrid(-2:.2:2,-2:.2:3);Z=X.*exp(-X.^2-Y.^2);[C,h]=contour(X,Y,Z);clabel(C,h,'manual')colormapcool请稍候...仔细选择要用于标记的等高线。完成后，当图形窗口为活动窗口时，请按Return键。-2-1.5-1-0.500.511.52-2-1.5-1-0.500.511.522.53[x,y,z]=peaks;subplot(1,2,1)contour3(x,y,z,16,'s')grid,xlabel('x-axis'),ylabel('y-axis')zlabel('z-axis')title('contour3ofpeaks');subplot(1,2,2)contour(x,y,z,16,'s')grid,xlabel('x-axis'),ylabel('y-axis')title('contourofpeaks');-202-202-10-50510z-axiscontour3ofpeaksx-axisy-axisx-axisy-axiscontourofpeaks-202-3-2-10123[x,y,z]=sphere(16);X=[x(:)*.5x(:)*.75x(:)];Y=[y(:)*.5y(:)*.75y(:)];Z=[z(:)*.5z(:)*.75z(:)];S=repmat([1.75.5]*10,prod(size(x)),1);C=repmat([123],prod(size(x)),1);scatter3(X(:),Y(:),Z(:),S(:),C(:),'filled'),view(-60,60)-1-0.500.51-1-0.500.51-101
