How do I get involved in exchanges on here ? <| sep |> DAE Yellow on yellow is easier to distinguish than yellow on black ? Character is doing rancho relaxo . Should be easy to tell the rest . <| sep |> Is it possible to have an non elementary function that has an elementary antiderivative ? I would think not but I don ' t know of a proof . <| sep |> Sophie was named as such because my cousin had named his firstborn Sophia . We loved that name . So we went with the French version . And we felt she looked like a Sophie anyway . People assume it ' s the diminutive of Sophia and call her Sophia . I let them . She ' s a redhead . When she gets old enough she ' ll set those individuals straight . <| sep |> Focus on a small number of techniques , over and over again , for extended periods i . e . , monthsyears . Do lots of specific sparring to work on those techniques . Take notes , ask questions , video yourself sparring and analyse what to improve .