dot.m

这里面有很多有用的东东

function d=dot(X,Y)
%DOT	
%The dot product of two vectors X and Y.
%Calling format: dot(X,Y)

%Copyright Gareth Williams, Stetson University 
[e-mail], http://www.stetson.edu/~gwilliam
%Accompanies "Linear Algebra with Applications" by Gareth Williams

d = X*Y';