FUNCTION :   lqdegree - lowest degree in q


CALLING SEQUENCE :  lqdegree()
                    lqdegree(qexp)


PARAMETERS : qexp - sum of q-mononials

SYNOPSIS :
        Returns the lowest degree in q that occurs,  
        with degrees in q are allowed to be negative and fractional. 
        This functions uses lqdegree0.

EXAMPLES :

> with(qseries):
> lqdegree();
-------------------------------------------------------------
lqdegree(qexp)                                               
   qexp is a sum of q-monomials.           
   Degrees in q are allowed to be negative and fractional. 
   Returns the lowest degree in q that occurs.  
-------------------------------------------------------------
> Y:=1/2*JAC(1,2,infinity) + q*JAC(3,4,infinity) + JAC(1,5,infinity)/q^(11/2);
                                                          JAC(1, 5, infinity)
   Y := 1/2 JAC(1, 2, infinity) + q JAC(3, 4, infinity) + -------------------
                                                                  11/2
                                                                 q
> lqdegree(Y);
                                     -11/2

SEE ALSO :

lqdegree0