>> [t1,x] = ode23(@ff,[0 1],1); ??? Error using ==> ff Too many input arguments. Error in ==> C:\MATLAB6p5\toolbox\matlab\funfun\private\odearguments.m On line 104 ==> f0 = feval(ode,t0,y0,args{:}); Error in ==> C:\MATLAB6p5\toolbox\matlab\funfun\ode23.m On line 154 ==> [neq, tspan, ntspan, next, t0, tfinal, tdir, y0, f0, args, ...