BNE.sage
v1.0.0
A Sage package for Bernoulli and Euler symbols.
Zonal.sage
2020
A Sage package for calculation of zonal polynomials. (manual)
This is joint work with Christoph Koutschan. Please also find his Mathematica package here.
Alternative Packages by Raymond Kan (Personal Website)
ZonaltoM.sage (download)
JacktoM.sage (download)
JacktoM Demo (download)