What does the symbol @ in these products ?

The first line represents probably the dot product:

dotp = @(a,b)sum(a.*b); % Dot Product

The second line represents probably the cross product:

crossp = @(a,b)a(1,:).*b(2,:)-a(2,:).*b(1,:); % Cross Product

Are the above Matlab's lines work exactly as :

dotp = dot(a,b); crossp = cross(a,b);

Third related question is about the normalization

normalize = @(a)a./repmat(sqrt(sum(a.^2)), [2 1]);

So the core question is : what does @ symbol in the above operations ?!!

Answer 1

[Torsten]

http://de.mathworks.com/help/matlab/function-handles.html

Best wishes

Torsten.

[Susan Arnold]

Thank you very much Torsten :)