diff ( y , x , 1 ) = sin(2.0 * x + 3.0) + cos(1.5 * x - 2.0); ! 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(2.0*x + 3.0)/2.0 + sin(1.5*x -2.0)/1.5); end;