PARI-program which counts distinct ray class character L-functions: rayclass.gp .
C-program which computes the trace formula for a given N and all characters: trace.c .
C-program which carries out the minimization procedure for a single (N,chi): opt.c .
Auxiliary files for trace.c and opt.c: common.c . exotic.c . modpow.c . Required lists of class numbers are available upon request.
GAP-program for checking all possibilities of ramification: ramification.g .