Richmond > On 30 Apr 2016, at 20:15, RM <richmondmathewson at gmail.com> wrote: > > Thanks; I've been using that one for some time. > > Now I'm trying to work out the underlying Maths . . . > > Richmond. > Perhaps the algorithm on this page will help - https://en.wikipedia.org/wiki/UTF-16 <https://en.wikipedia.org/wiki/UTF-16> Peter