where "1, . . . , "n are the elementary symmetric polynomials in tanA1, . . . , tanAn, and where A1, . . . ,An are half the vertex angles of the polygon.
where "1, . . . , "n are the elementary symmetric polynomials in tanA1, . . . , tanAn,and where A1, . . . ,An are half the vertex angles of the polygon.