3d Plotting Using Meshgrid
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Hello,
This is the Matlab script I designed for 3D plotting using "meshgrid". Basically, I need to make a plot a function which is given by " f " depending on two independent variables " i " and " j ". I want to keep " f " as a 2-D array. I have tried to modify my code several times, but I couldn't get an expected output. Would you help me to address the problem?
format long e
n=1:1:5;
m=1:1:10;
alpha=0.01;
A=zeros(length(n),length(m));
B=zeros(length(n),length(m));
f=zeros(length(n),length(m));
for i=1:1:length(n)
for j=1:1:length(m)
A(i,j)=i.^2/j.^3;
B(i,j)=A(i,j)/(alpha+i);
f(i,j)=B(i,j)./A(i,j);
%fprintf('%d %d %.10e %.10e %.10e\n',i,j,A(i,j),B(i,j),f(i,j));
end
end
for i=1:1:length(n)
for j=1:1:length(m)
[X,Y]=meshgrid(i,j);
%disp(f(X,Y));
mesh(X,Y,f(X,Y));
end
end
采纳的回答
Daniel M
2019-11-6
Replace
for i=1:1:length(n)
for j=1:1:length(m)
[X,Y]=meshgrid(i,j);
%disp(f(X,Y));
mesh(X,Y,f(X,Y));
end
end
with
[X,Y] = meshgrid(1:length(n),1:length(m));
figure
surf(X,Y,f')
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