%
%   ODENEX2A.M   Function evaluation for ODE step in ODENEX2.M
%
%   Evaluate  y' = (x^2 + 3y^2)/(2xy)      
%
%   File prepared by J. R. White, UMass-Lowell (July 2003)
%
     function yp = odefile(x,y)
     yp = (x^2 + 3*y^2)/(2*x*y);
%
%   end of function