I assume you are trying to calculate the cosine distance using the cosine similarity.
You can use a for loop , e.g.
nodalCoordinates=rand(80,3); % Replace these with your coordinates
nodalNorms=vecnorm(nodalCoordinates,2,2);
cosineDistances=zeros(80,80); % Include the distance to itself (zero) for simplicity
for i=1:80
cosineSimilarity=nodalCoordinates*nodalCoordinates(i,:)'./(nodalNorms(i)*nodalNorms);
cosineDistances(i,:)=1-cosineSimilarity;
end
If you simply want the spatial distance,
spatialDistances=zeros(80,80); % Include the distance to itself (zero) for simplicity
for i=1:80
spatialDistances(i,:)=vecnorm(nodalCoordinates-nodalCoordinates(i,:),2,2);
end
