dot_to_dot.m

exm for Experiments with MATLAB (by Cleve Moler in 2008), 这本书是关于MATLAB的教材

function dot_to_dot(X)
% DOT_TO_DOT  Connect the points from a 2-by-n matrix.
X(:,end+1) = X(:,1);
plot(X(1,:),X(2,:),'.-')
axis(10*[-1 1 -1 1])
axis square