%% eval_expression.txt
% this file contains the expression to be evaluated
% depending on what you have inside can be very dangerous

'[X,Y] = meshgrid(-8:.5:8); R = sqrt(X.^2 + Y.^2); Z = sin(R)./R ; surfc(X,Y,Z,''FaceColor'',''red'',''EdgeColor'',''none'');shg'

