/// Returns the Coxeter matrix for the Dn group.
Returns the Coxeter matrix for the Dn group.
Returns the Coxeter matrix for the Dn group .
pub fn d(n: usize) -> Self {
        let mut cox = Self::a(n);
        cox.link(0, 1, T::TWO);
        cox.link(0, 2, T::THREE);
        cox
    }
pub fn d ( n : usize ) -> Self { let mut cox = Self :: a ( n ) ; cox . link ( 0 , 1 , T :: TWO ) ; cox . link ( 0 , 2 , T :: THREE ) ; cox }
Returns the Coxeter matrix for the Dn group.
Returns the Coxeter matrix for the Dn group .
n
usize