diff ( y , x , 1 ) = (0.1 * x + 1.0) - sin(x); ! Digits := 32; max_terms := 30; ! x_start := 0.1; x_end := 5.0 ; diff(y,0,exact_soln_y(x_start)); glob_look_poles := true; glob_max_iter := 1000000; ! exact_soln_y := proc(x) return(cos(x) + (0.05 * x * x) + x) ; end;