../nakpump.mod was for steady state pump currents under the assumption
of constant nain, kin, and atp. nakpump1.mod modifies this so that
nai, ki, and atps are STATEs that are computed in response to nakpump
and other na and k channel currents. nakpump initializes the pump
states to be in steady state with nai, ki, and atps clamped to nain,
kin, and atp.  The clamp efficacy for nai, ki, and atps thereafter are
determined by the values of nasrcrate, ksrcrate, and atpsrcrate
respectively (by default the former two are 0 (unclamped) and the
latter is 1e9 (stronly clamped)).

launching
nrngui init.hoc

shows a dialog choice for running Figures 1-12 in the parent folder or
running a dynamic simulation showing the approach to steady state v,
nai, and k from an initial condition of v=0, nai=nao, and ki=ko:



A steady state of nai = 10mM, and ki = 54mM was obtained by fitting
gk_ionleak, gna_ionleak, and g_pas (probably overdetermined).  Note
that steady state v is determined by the value of e_pas.