Ok, so I'm trying to plot the unit circle using the chebyvhev metric, which should give me a square. I am trying this in MATLAB, using the 'pdist' and 'cmdscale' functions. My uber-complex code is the following:(adsbygoogle = window.adsbygoogle || []).push({});

clc;clf;clear all;

boundaryPlot=1.5;

% Euclidean unit circle

for i=1:360

theta(i)=deg2rad(i);

end

zc=[cos(theta)' sin(theta)'];

% Transform to Chebychev metric

x=zc(:,:);

D=pdist(x,'chebychev');

D1=squareform(D);

y=cmdscale(D1);

% Plots

hold on

plot(y(:,1),y(:,2));

axis square;axis([-boundaryPlot boundaryPlot -boundaryPlot boundaryPlot])

plot([-boundaryPlot boundaryPlot],[0 0],'k')

plot([0 0],[-boundaryPlot boundaryPlot],'k')

where the part in bold is the really important part of the code. I have two problems with this. First, the 'y' variable which is supposed to hold the coordinates under the new metric has a size of 360x180. One of these dimensionsshouldhave been 2, which is the dimension of the L-p space (p=2).

My second problem is that I get the plot you can see in the attachment, which corresponds to the Manhatan metric, and has rounded edges for some reason.

Has anyone done this calculation before? Is there some other syntax/function I should be using??

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# MATLAB Plot unit circle in chebychev metric in MATLAB

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**