some questions about bin/cylinder

Dear professor, i just started learning lammps software,so there are some troubles for me to use this software. About the command "compute 1 all chunk/atom bin/cylinder z lower 2 10 10 2.0 5.0 3 discard yes",which the manual introduces is so easy. And I can’t understand it in detail.Such as,what’s mean of the number"10 10’?
I hope you can introduce it to me in detail at your spare time. Looking forward to your reply.

       Dear professor, i just started learning lammps software,so there are some troubles for me to use this software. About the command "compute 1 all chunk/atom bin/cylinder z lower 2 10 10 2.0 5.0 3 discard yes",which the manual introduces is so easy. And I can't understand it in detail.Such as,what's mean of the number"10 10'?

from the header of the compute chunk/atom docs:

bin/cylinder args = dim origin delta c1 c2 rmin rmax ncbin
    dim = x or y or z = axis of cylinder axis
    origin = lower or center or upper or coordinate value (distance units)
    delta = thickness of spatial bins in dim (distance units)
    c1,c2 = coords of cylinder axis in other 2 dimensions (distance units)
    crmin,crmax = bin from cylinder radius rmin to rmax (distance units)
    ncbin = # of concentric circle bins between rmin and rmax

more details are further down the page. please read it carefully.

thanks,
     axel.