function i=outsideConvex(x,n,o,tol) % function i=outsideConvex(x,n,o,tol<0>). Determine which points are outside% the convex object described by n'*x+o<=0. Positive tol reduces the number% of outside points.if nargin<4    tol=0;endif( size(x,2)*size(n,2) < 1e5 )    i = sign(sum(n'*x + o(ones(size(x,2),1),:)' >tol));else % Matrices are too big. Break into chunks    chunk = round(1e5/size(n,2));    i = zeros(1,size(x,2));    for j=1:chunk:size(x,2)	j2 = min(j+chunk-1,size(x,2));	i(j:j2) = sign(sum(n'*x(:,j:j2) + o(ones(j2-j+1,1),:)' >tol));    endend