The Royal Swedish Physiographic Society in Lund or Kungl. Fysiografiska Sällskapet i Lund, is one of the Royal Academies in Sweden. It was founded in Lund, on December 2, 1772, and
and received a Royal Charter by Gustav III, on March 6, 1778.
... should be understood as "either of those element(s) of the field whose square equals b2 - 4ac". In some fields, some elements have no square roots and some have two; only ...