The Royal Swedish Society of Sciences and Letters in Gothenburg or Kungl. Vetenskaps- och Vitterhetssamhället i Göteborg is one of the Royal Academies in Sweden. It was founded in the 1760s in Gothenburg, and given Royal Charter in 1778 by Gustav III of Sweden.
... symbol
<math>\pm \sqrt {b^2-4ac}</math>
in the formula should be understood as "either of those element(s) of the field whose square equals b2 - 4ac". In ...