使用Matlab绘制三维图像步骤 不要敷衍 如果可以 请绘制Rosenbrock函数 帮忙用matlab 绘制一个函数的三维图像
\u60a8\u597d\uff0c\u8bf7\u95ee\u7528matlab\u600e\u4e48\u753b\u51farosenbrock\u66f2\u7ebf\u4e09\u7ef4\u56fe\u6839\u636e\u7f57\u68ee\u5e03\u7f57\u514b\uff08rosenbrock\uff09\u66f2\u7ebf\u65b9\u7a0b\uff0c
\u4e0b\u9762\u4ee5a=1\uff0cb=100\u4e3a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u7528matlab\u753b\u51farosenbrock\u66f2\u7ebf\u4e09\u7ef4\u56fe\u3002
a=1\uff0cb=100
xa=-2:0.1:2; ya=-1:0.1:3;
[x,y]=meshgrid(xa,ya);
z=(a-x).^2+b*(y-x.^2).^2;
mesh(x,y,z)
xlabel('x');ylabel('y');zlabel('z');
\u8fd0\u884c\u540e\u56fe\u5f62\u4e3a
\u55ef\uff0c\u5e94\u8be5\u53ea\u6709n=2\u65f6\uff0c\u8fd9\u4e2a\u51fd\u6570\u662f\u4e09\u7ef4\u7684\uff0c\u53d6n=2\u8fd9\u79cd\u60c5\u51b5\u7ed8\u56fe
clear;
clc;
x1=-20:1:20;
%x1\u53d6\u503c
x2=-20:1:20;
%x2\u53d6\u503c
[x1,x2]=meshgrid(x1,x2);%\u5212\u5206\u7f51\u683c
F=(x1.^2-10*cos(2*pi*x1)+10).^2+(x2.^2-10*cos(2*pi*x2)+10).^2;%\u8ba1\u7b97F\u503c
surf(x1,x2,F)%%\u4f5c\u56fe
%%%\u56fe\u5f62\u5927\u81f4\u662f\u8fd9\u6837
\u4e0d\u77e5\u9053\u4f60\u60f3\u8981\u7684\u662f\u4e0d\u662f\u8fd9\u6837\u3002\u3002\u3002\u3002\u3002
function createfigure
% Create figure
figure1 = figure('Position',[10 40 1200 600]);
colormap('gray');
axis square;
R=0:.002:1;
TH=2*pi*(0:.002:1);
X=R'*cos(TH);
Y=R'*sin(TH);
Z=log(1+vrosenbrock(X,Y));
% Create subplot
subplot1 = subplot(1,2,1,'Parent',figure1);
view([124 34]);
grid('on');
hold('all');
% Create surface
surf(X,Y,Z,'Parent',subplot1,'LineStyle','none');
% Create contour
contour(X,Y,Z,'Parent',subplot1);
% Create subplot
subplot2 = subplot(1,2,2,'Parent',figure1);
view([234 34]);
grid('on');
hold('all');
% Create surface
surf(X,Y,Z,'Parent',subplot2,'LineStyle','none');
% Create contour
contour(X,Y,Z,'Parent',subplot2);
% The function vrosenbrock, used in createfigure, calculates Rosenbrock's function at a whole vector of points:
function z=vrosenbrock(x,y)
z=100*(y - x.^2).^2 + (1-x).^2;
本视频展示如何用matlab绘制散圆状态图，可用于相关科研数据绘图！
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