Computation of zeta functions counting pseudo-codewords of linear codes

It is described in this document how to compute zeta functions counting unscaled pseudo-codewords of general binary linear codes. This zeta functions are introduced in [2] for cycle codes and extended in [3] for general linear codes. Especially, we show that the zeta functions of codes are computed by using a 1/2 size determinants compared to those of [3] for non-cycle codes.