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What does the symbol @ in these products ?

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Susan Arnold
Susan Arnold 2016-2-25
评论： Susan Arnold 2016-2-25
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 ?!!

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Torsten
Torsten 2016-2-25
编辑：Torsten 2016-2-25

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