matlab上机习题5 MATLAB7.0二维绘图

1、实验目的： 掌握图形修饰处理方法；实验内容：x) 和 y2=2e-0.5xcos(x)，标记两曲线交叉点。添加图形标注。12、绘制 r=sin(t)cos(t)的极坐标图；13、分别以条形图、阶梯图、杆图和填充图形式绘制曲线 y=2sin(x)。实验程序与结果：1x=-2:0.1:2;y=sin(x).*cos(x);plot(x,y,-r)0.50.40.30.20.10-0.1-0.2-0.3-0.4-0.5-2-1.5-1-0.500.511.52222x /9+y /16-1 =0543210y-1-2-3-4-5-5-4-3-2-1012345x3x1=-2:0.1:2;x2=-2:

2、0.1:2;y1=sin(x2).*x1;y2=cos(x1).*x2;plot3(x1,x2,y1,d,x1,x2,y2,d)21.510.50-0.5-1212100-1-1-2-24x1=-2:0.1:2;x2=-2:0.1:2;y1=x1*sin(x2);y2=x2*cos(x1);meshc(y1)hold onmeshc(y2)5title(解曲线)解曲线54321)5-0-5-(y-1-2-3-4-5-5-4-3-2-1012345x(-5-5)6x1=-2:0.1:2;x2=-2:0.1:2;y1=sin(x2).*x1;y2=cos(x1).*x2;plot3(x1,x2,y

3、1,d,x1,x2,y2,d);text(1,1,y1=sin(x2).*x1);text(4,4,y2=cos(x1).*x2)21.510.50-0.5-1212100-1-1-2-27x=-2:0.1:2;y=sin(x).*cos(x);plot(x,y,-r);axis(-3,3,-1.5,1.5)81.510.50-0.5-1-1.5-3-2-101238x=0:pi/10:2*pi;y1=sin(x);y2=cos(x);plot(x,y1,-g,linewidth,6);hold onplot(x,y2,r-,linewidth,6);legend(sin,cos,locati

4、on,NorthWest)10.80.60.40.20sin-0.2-0.4-0.6-0.8-1012345679x=linspace(0,2*pi,1000);y1=0.2*exp(-0.5*x).*cos(4*pi*x);y2=2*exp(-0.5*x).*cos(pi*x);k=find(abs(y1-y2)1e-2);x1=x(k);y3=0.2*exp(-0.5*x1).*cos(4*pi*x1);plot(x,y1,x,y2,dg,x1,y3,bp)21.510.50-0.5-1-1.50123456710 x=0:0.1:2*pi;y1=2*exp(-0.5*x);plot(x,

5、y1)hold ony2=cos(4*pi*x);plot(x,y2);xlabel(x(0-2pi);text(0.5,1.5,y1=2*exp(-0.5*x);text(0.5,0.5,y2=cos(4*pi*x);legend(y1,y2)21.51y1y20.50-0.5-101234567x(0-2 )x=-2:0.1:2;subplot(2,1,1)y1=sin(x);plot(x,y1,-r);subplot(2,1,2);y2=cos(x);plot(x,y2)10.50-0.5-1-2-1.5-1-0.500.511.5210.50-0.5-2-1.5-1-0.500.511.52t=0:0.1:5;r=sin(t).*cos(t);polar(t,r)900.50.460150301800210330240300270 x=0:0.1:10;y=2*sin(x);subplot(2,2,1);bar(x,y);subplot(2,2,2);stairs(x,y)subplot(2,2,3