作业帮Matlab的高手来帮小弟个忙,给这个程序每句加个注释.感激不尽啊!Syms x y z; % f=x^2+y^2+z^2; n=jacobian(f,[x,y,z]); % [X,Y,Z]=sphere;U=subs(n(1),{x,y,z},{X,Y,Z});V=subs(n(2),{x,y,z},{X,Y,Z});W=subs(n(3),{x,y,z},{X,Y,Z});quiver3(X,
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 17:46:51
![Matlab的高手来帮小弟个忙,给这个程序每句加个注释.感激不尽啊!Syms x y z; % f=x^2+y^2+z^2; n=jacobian(f,[x,y,z]); % [X,Y,Z]=sphere;U=subs(n(1),{x,y,z},{X,Y,Z});V=subs(n(2),{x,y,z},{X,Y,Z});W=subs(n(3),{x,y,z},{X,Y,Z});quiver3(X,](/uploads/image/z/10355762-2-2.jpg?t=Matlab%E7%9A%84%E9%AB%98%E6%89%8B%E6%9D%A5%E5%B8%AE%E5%B0%8F%E5%BC%9F%E4%B8%AA%E5%BF%99%2C%E7%BB%99%E8%BF%99%E4%B8%AA%E7%A8%8B%E5%BA%8F%E6%AF%8F%E5%8F%A5%E5%8A%A0%E4%B8%AA%E6%B3%A8%E9%87%8A.%E6%84%9F%E6%BF%80%E4%B8%8D%E5%B0%BD%E5%95%8A%21Syms+x+y+z%3B+%25+f%3Dx%5E2%2By%5E2%2Bz%5E2%3B+n%3Djacobian%28f%2C%5Bx%2Cy%2Cz%5D%29%3B+%25+%5BX%2CY%2CZ%5D%3Dsphere%3BU%3Dsubs%28n%281%29%2C%7Bx%2Cy%2Cz%7D%2C%7BX%2CY%2CZ%7D%29%3BV%3Dsubs%28n%282%29%2C%7Bx%2Cy%2Cz%7D%2C%7BX%2CY%2CZ%7D%29%3BW%3Dsubs%28n%283%29%2C%7Bx%2Cy%2Cz%7D%2C%7BX%2CY%2CZ%7D%29%3Bquiver3%28X%2C)
Matlab的高手来帮小弟个忙,给这个程序每句加个注释.感激不尽啊!Syms x y z; % f=x^2+y^2+z^2; n=jacobian(f,[x,y,z]); % [X,Y,Z]=sphere;U=subs(n(1),{x,y,z},{X,Y,Z});V=subs(n(2),{x,y,z},{X,Y,Z});W=subs(n(3),{x,y,z},{X,Y,Z});quiver3(X,
Matlab的高手来帮小弟个忙,给这个程序每句加个注释.感激不尽啊!
Syms x y z; %
f=x^2+y^2+z^2;
n=jacobian(f,[x,y,z]); %
[X,Y,Z]=sphere;
U=subs(n(1),{x,y,z},{X,Y,Z});
V=subs(n(2),{x,y,z},{X,Y,Z});
W=subs(n(3),{x,y,z},{X,Y,Z});
quiver3(X,Y,Z,U,V,W);
hold on;
surf(X,Y,Z);
axis equal
Matlab的高手来帮小弟个忙,给这个程序每句加个注释.感激不尽啊!Syms x y z; % f=x^2+y^2+z^2; n=jacobian(f,[x,y,z]); % [X,Y,Z]=sphere;U=subs(n(1),{x,y,z},{X,Y,Z});V=subs(n(2),{x,y,z},{X,Y,Z});W=subs(n(3),{x,y,z},{X,Y,Z});quiver3(X,
Syms x y z; % 定义符号变量,为了能进行符号运算.
f=x^2+y^2+z^2; % 进行符号运算
n=jacobian(f,[x,y,z]); % 计算函数f的雅阁比行列式,并保存到n.
[X,Y,Z]=sphere;% 生成一个球体,其中X、Y、Z为这个球上的点.
U=subs(n(1),{x,y,z},{X,Y,Z});%将n矩阵中的未知数在x,y,z用X,Y,Z值替换
V=subs(n(2),{x,y,z},{X,Y,Z});%同理,n为三维的.
W=subs(n(3),{x,y,z},{X,Y,Z});
quiver3(X,Y,Z,U,V,W);%以X,Y,Z]为起点,U,V,W为终点画向量射线.
hold on;%为了下面语句画的图像和上面画的图像在一张图上
surf(X,Y,Z);%填充球的曲面
axis equal%确保球的形状为圆球行,非椭球行.