FUNCTION : egeta - symbolic form eta[n,g](tau)
CALLING SEQUENCE : egeta(n)
PARAMETERS : n - positive integer
SYNOPSIS : egetaa(n) returns eta[d,g](tau)
EXAMPLES :
> with(thetaids):
> egeta(5,1);
eta[5, 1](tau)
SEE ALSO :
_ETAnm,
_etanm,
eeta