Computes the Pfaffian of a banded skew-symmetric matrix taking special care
to avoid numerical under- or overflow.
Computes the Pfaffian of a banded skew-symmetric matrix.
Reduces a complex skew-symmetric band matrix A to real
skew-symmetric tridiagonal form T by a unitary congruence transformation.
Computes the Pfaffian of a skew-symmetric matrix, with care to overflow.
Computes the Pfaffian of a skew-symmetric matrix.
Reduces a real skew-symmetric matrix A to skew-symmetric
tridiagonal form T by an orthogonal similarity transformation.
Computes the factorization of a skew-symmetric matrix A
using the Parlett-Reid algorithm.