support division by numbers (as Prod with 1/n)
support division by numbers (as Prod with 1/n)

HPAC/ELAPS,elmar-peise/ELAPS,elmar-peise/ELAPS,HPAC/ELAPS,elmar-peise/ELAPS,HPAC/ELAPS,HPAC/ELAPS,elmar-peise/ELAPS