%
%   BESS_EX1A.M   ODE function file for BESS_EX1.M
%
%   Given differential eqn.:   y'' + 9x*y = 0
%
%   File prepared by J. R. White, UMass-Lowell (Nov. 2003)
%
     function zp = odefile(x,z)
     zp = zeros(length(z),1);
     zp(1) = z(2);
     zp(2) = -9*x*z(1);
%
%   end of function

