ds=true ds=false stretch=t, large=t x 5 = x x 5 = x stretch=f, large=t ∫ x 5 = ∫ x ∫ x 5 = ∫ x stretch=t, large=f x 5 = A 5 = x x 5 = A 5 = x stretch=f, large=f ∫ x 5 = ∫ x ∫ x 5 = ∫ x