FUNCTION :  thetaids[lqdegree] - lowest degree in q                 


CALLING SEQUENCE :  lqdegree()     
                    lqdegree(qexp)     
    
PARAMETERS :   qexp - is a sum of q-monomials

   
SYNOPSIS :   

     Returns lowest degree in q that occurs.
     Degrees in q are allowed to be negative and fractional. 
   
EXAMPLES :   


> with(thetaids):

> 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:=JAC(1,2,infinity)/JAC(1,5,infinity)/q^(9/40) + q^(1/10)*JAC(3,4,infinity)/JAC(2,5,infinity); 
                                             1/10
                   JAC(1, 2, infinity)      q     JAC(3, 4, infinity)
           Y := ------------------------- + -------------------------
                                     9/40      JAC(2, 5, infinity)
                JAC(1, 5, infinity) q

> lqdegree(Y);
                                       -9
                                       --
                                       40

> jac2getacombo(Y);
             eta[2, 1](tau) eta(2 tau)   eta[4, 3](tau) eta(4 tau)
             ------------------------- + -------------------------
             eta[5, 1](tau) eta(5 tau)   eta[5, 2](tau) eta(5 tau)


SEE ALSO: lqdegree0