Function: quadclassunit
Section: number_theoretical
C-Name: quadclassunit0
Prototype: GD0,L,DGp
Help: quadclassunit(D,{flag=0},{tech=[]}): compute the structure of the
 class group and the regulator of the quadratic field of discriminant D. If
 flag is non-null (and D>0), compute the narrow class group. See manual for
 the optional technical parameters

