Here is a list of all modules with brief descriptions:

Nbasis
Nbincom
NBL05CHSA
Nc16pc371e
Ndfunc
Neprmat
Neprprm
Nerrmsg
Nexpdat
Nftwork
Niterat
Nlmcom
Nlpnam
Nmaxl
Nmspctr
Nmtsdef
Nnlsdim
Nnlsnam
Nparcom
Nparsav
Nphyscn
Npidef
Nrnddbl
Nstdio
Nsymdef
Ntimer
Ntridag