第十次作业1在0 4pi画sinx cosx同一个图象其中

在[0,4pi]画sin(x),cos(x)(在同一个图象中); 其中cos(x)图象用红色星号画.并在函数图上标注“y=sin(x)”,“y=cos(x)”,x轴,y轴,标题为“正弦余弦函数图象”>>>>>>>>>>hold>>title('>>>>3045x2y2z2R2x2y2>>>>>>hidden>>i=find(X.^2+Y.^2->>>>title('X^2+Y^2+Z^2=1X^2+Y^2=X>>rotate3d>>>>>>>>>>>>>>>>>>hold>>>>t=linspace(->>>>>>>>>>>> x2y1x2y画出空间曲面z x2y1x2y>>>>x=->>y=->>>>>>>>>>>>plotPlot>>x=-

(x

(y9

1>>y=sqrt(1-(x->>>>hold>>y1=-sqrt(1-(x->>Ezplot>>symsx>>ezplot((x+1)^2/16+(y-3)^2/9-polarcos(3>>>>>>用subplot分别在不同的坐标系（平面直角坐标系和极坐标系）

y

r2xy

1t1t11y21y211y21y2y>>>>x1=->>y1=exp(->>>>title('概率曲线>>>>>>>>title('双扭线>>>>ezplot('3*t/(1+t.^3)','3*(t.^2)/(1+t.^3)',[0title('叶形线>>>>>>hold>>>>holdtitle('曳物线0≤x≤2y12e05xy2cos(4xY1”Y2”0.5x}')”；在坐标为(2.5,1.1)y2y2=cos(4{\pi}x)')”x、yX”“ariable>>>>y1=2*exp(->>>>>>hold>>gtext('y1=2e^(->>gtext('>>xlabel('variable>>ylabel('variablea>>>>>>y1=[exp(->>y2=[exp(->>y3=[exp(->>plot(t,y1,'-h',t,y2,':o',t,y3,'-->>>>>>>>h=annotation('textarrow',[0.72860.7161],[0.3905>>>>h=annotation('textarrow',[0.48390.5089],[0.319>>>>h=annotation('textarrow',[0.31790.3357],[0.2048>>>>hold x2y1x2y画出空间曲面z x2y1x2y>>>>x=->>y=->>>>>>>>>>>>zxex2y2xy22>>[x,y]=meshgrid([->>z=x.*exp(-x.^2->>>> >>title('plot3>> >>title('mesh>> >>title('surf>> surf(x,y,z),shading>>title('surf(x,y,z),shading>> mesh(x,y,z),hidden>>>>>>>>axis>>axis(x,y定义多元函数f (x2y2)e(x2y2)，并用它来计算f(2,3)、f(3,4)、(x,yfunctionf=hanshu>>mhanshu(2,3)f=ans>>mhanshu(3,4)f=ans>>mhanshu(0,0)f=0ans=>>>>x=->>>>>>Z=(X.^2+Y.^2)*exp(-X.^2->>应用e1111e之值，要求误差小于 >>>>>>>>while1/n>10^(-6);forc=c+1;>>m1=列出所有的水仙花数,水仙花数是一个三位