// reset nseg so none smaller than segL microns
segL = 5		// the length (in microns) of each dendritic segment
forall { ns=int(L/segL+0.5)
        if (ns==0) {
             ns=1
        }
        if ((ns-int(ns/2)*2)==0) {
             ns=ns+1
        }
        nseg = ns
}