matlab怎么画z-x*y (x^2 y^2)
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clc;clearA=[115.14129.56138.662112.55MATLAB画二维平面填充等值线图的命令是contourf(x,y,z),X,Y分别为纵横
可以使用隐函数绘图试试:>>ezplot('x+y+x^2+y^3+exp(x+y)-10',[-1010])再问:行倒是行,可是,如果这个函数里面有系数,比如是x+m*y+x^2+y^3+exp(x
你要对X和Y设定一个区间,然后就可以画了,我大概写了一下:[x,y]=meshgrid([-2,2,-4,4])%%%-2
[x,y,z]=solve('x+y=2','y+z=1','y=0')x=2y=0z=1>>x+y+zans=3>>[x,y,z]=solve('x+y=2','y+z=1','y=1')x=1y=
代码如下:xx=-1:0.1:1;[xy]=meshgrid(xx);z=2-x.^2-y.^2;surf(x,y,z)
x=1:0.1:10;y=1:0.1:10;z=0:0.1:10;[x,y,z]=meshgrid(x,y,z);f=((x-y).^2-1).*((y-z).^2-1).*((z-x).^2-1);
=2;[x,y]=meshgrid(2*linspace(-r,r));z=nthroot(r^3-x.^3-y.^3,3);mesh(x,y,z)
[x,y,z]=solve('x^2-5*y^2+7*z^2+12=0','3*x*y+x*z-11*x=0','2*y*z+40*x=0')
用isosurface绘制例子:绘制x^2+y^2-z^2=1的图像[x,y,z]=meshgrid(linspace(-10,10));val=x.^2+y.^2+z.^2;isosurface(x
如果x,y都是矩阵Z=(x.^2).*exp(-(x.^2+y.^2))
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]=meshgrid(0:.01:10);z=x.*y;mesh(x,y,z)
x=linspace(-2.5,2.5);y=linspace(-2.5,2.5);z=x.^2+y.^2;[X,Y]=meshgrid(x,y);[X1,Y1,Z1]=meshgrid(x,y,5)
[X,Y]=meshgrid([-10:0.1:10]);Z=sin(pi*sqrt(X.^2+Y.^2));surf(X,Y,Z)
clear allx=-5:0.1:5;y=0:0.1:10;[x,y]=meshgrid(x,y);z=(x.^2).*y+sqrt(y)./x;mesh(x,y,z);注意向量运算用点乘
clearall;clc;symsxyz=x^3*y^2-3*x*y^3-x*y+1;dzdx2=diff(z,x,2);dzdy2=diff(z,y,2);dxy2=dzdx2+dzdy2;figu
给出x,y向量值,利用[xx,yy]=meshgrid(x,y)将x,y处理再给出z=xx.*yy;最后就是画图了.plot3(xx,yy,z)
clc,clear all;figure (1)[m,n,p]=sphere;t=abs(p);surf(m,n,p,t); %surf用于画表面图hold o
注意这些都是符号函数,要先定义symsxyz;举例说明:compose(f,g,x,y,z)返回f(g(z)),其中x说明f要复合的是x.y说明g要复合的是y.z说明两者复合后产生的新变量是z.suc
matlab好像只能画曲线和曲面,不能画三维实体,你试试这个样子的图你能不能接收吧.fori=linspace(-pi/6,pi/6,20)forj=linspace(-pi/6,pi/6,10)fo