Fianna:
Alternatives: Champions of the Red Branch, Fenians, Fianna Éireann
Fianna is used in the name of one of the major Irish political parties, Fianna Fáil.
... the explicit solution(s) x to the quadratic equation <math>ax^2+bx+c=0</math> in terms of the coefficients a, b and c, which are assumed to be real (but ...