Each level alternates between numbers and alpha characters. After 26 letters at an alpha level, you get aa, then ab, then ac, etc.
-- Bob > On Nov 12, 2020, at 3:50 AM, Jean Louis <[email protected]> wrote: > > Hello again, > > What is the algorithm for Koutliner's numbering named `alpha`? > > Is there any description or reference to that algorithm? > > Jean
