matlab曲面x^2 y^2=x和Z=sqrt(1-X^2-y^2)的交线

clear>>symsxy>>z=x.*y;>>ezsurf(x,y,z)我就已经实现好了你也试试吧

[X,Y]=meshgrid(linspace(-10,10),linspace(-10,10));Z=(X.^2)/(4^2)-(Y.^2)/(5^2);mesh(X,Y,Z)

x=0:.1:2*pi;y=exp(-0.2*x).*sin(0.5*x);[zz,yy,xx]=cylinder(y);xx=xx*2*pi;surf(xx,yy,zz)再问：[zz,yy,xx]=

代码如下：xx=-1:0.1:1;[xy]=meshgrid(xx);z=2-x.^2-y.^2;surf(x,y,z)

x=-1:.1:1;y=x;[X,Y]=meshgrid(x,y);z=6-X.^2-Y.^2;mesh(X,Y,z)z1=X.^2+Y.^2;mesh(X,Y,z1)你试试能不能用!

clfx=-4:4;y=x;\x09\x09\x09\x09[X,Y]=meshgrid(x,y);\x09Z=sqrt(X.^2+Y.^2);\x09\x09\x09\x09)surf(X,Y,Z)

-(pi*(5*5^(1/2)-27))/6另附Matlab程序段：%此程序为计算空间中给定的曲面r(u,v)的面积clearall;clc;symsuv;%{设置曲面的向量形式r(u,v)=分量函数

x²+y²+z²=2x+2y+2z(x-1)²+(y-1)²+(z-1)²=3令x=1+u,y=1+v,z=1+w==>Σ'：u²

应该先绘制曲面z=xy.matlab程序如下：x=-30:1:30;y=-30:1:30;n=length(x);[xb,yb]=meshgrid(x,y);zb=xb.*yb;%要用xb,yb而不是

x=-1:.1:1;%x的取值y=-1:.1:1;%y的取值[x,y]=meshgrid(x,y);z=x.*y;surf(x,y,z);

[X,Y,Z]=sphere(50);mesh(5*X,5*Y,5*Z)%画球面holdon;ezmesh('0-x-y',[-55])%画平面[x,y,z]=meshgrid(linspace(-5

柱面(x^2+y^2)^2=x^2-y^2化成极坐标方程是r^2=cos2θ.即r=√cos2θ.θ的范围是[-π/4,π/4]∪[3π/4,5π/4]S=∫∫dS=∫∫√[1+(z'x)^2+(z'

设A(x1,y1,z1)为x/2=y=-(z-1)上的任意点,其关于x轴的对称点为A'(x,y,z).易知：x=x1,y1=(x1)/2,z1=1-(x1)/2,y+z=y1+z1→2(y+z)=x-

x=[1;2;3;4;5;6],y=[1;2;3;4;5;6],z=[5;8;4;9;6;1],scatter(x,y,5,z)%散点图figure[X,Y,Z]=griddata(x,y,z,lin

ezmesh('sqrt(4-x^2-y^2)')

请问你这是球坐标还是直角坐标?clcclear[x,y]=meshgrid(0:0.01*pi:2*pi);z=sin(x).*cos(y);surf(x,y,z);[T,P,R]=cart2sph(

画曲面---把曲面方程参数化a1=linspace(0,2*pi,30);b1=linspace(0,pi,30);[a,b]=meshgrid(a1,b1);x=6*cos(a).*sin(b);y

很怪异的函数：clearall;clc;z=@(x,y)((x-22).^2+(y-22).^2).^(-20);ezsurf(z,[21.6,22.4],[21.6,22.4]);

[x,y]=meshgrid(0:0.01:2);z=1000.*[log(x)./log(y)];mesh(x,y,z)

functionz=poll_example(x,y)z=(100+0.1*x.^0.5+10.9*y.^0.5).*(25