/* Created by Language version: 7.7.0 */
/* VECTORIZED */
#define NRN_VECTORIZED 1
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "scoplib_ansi.h"
#undef PI
#define nil 0
#include "md1redef.h"
#include "section.h"
#include "nrniv_mf.h"
#include "md2redef.h"
 
#if METHOD3
extern int _method3;
#endif

#if !NRNGPU
#undef exp
#define exp hoc_Exp
extern double hoc_Exp(double);
#endif
 
#define nrn_init _nrn_init__ca
#define _nrn_initial _nrn_initial__ca
#define nrn_cur _nrn_cur__ca
#define _nrn_current _nrn_current__ca
#define nrn_jacob _nrn_jacob__ca
#define nrn_state _nrn_state__ca
#define _net_receive _net_receive__ca 
#define rates rates__ca 
#define states states__ca 
#define trates trates__ca 
 
#define _threadargscomma_ _p, _ppvar, _thread, _nt,
#define _threadargsprotocomma_ double* _p, Datum* _ppvar, Datum* _thread, _NrnThread* _nt,
#define _threadargs_ _p, _ppvar, _thread, _nt
#define _threadargsproto_ double* _p, Datum* _ppvar, Datum* _thread, _NrnThread* _nt
 	/*SUPPRESS 761*/
	/*SUPPRESS 762*/
	/*SUPPRESS 763*/
	/*SUPPRESS 765*/
	 extern double *getarg();
 /* Thread safe. No static _p or _ppvar. */
 
#define t _nt->_t
#define dt _nt->_dt
#define gbar _p[0]
#define vshift _p[1]
#define temp _p[2]
#define q10 _p[3]
#define vmin _p[4]
#define vmax _p[5]
#define gca _p[6]
#define minf _p[7]
#define hinf _p[8]
#define mtau _p[9]
#define htau _p[10]
#define tadj _p[11]
#define m _p[12]
#define h _p[13]
#define ica _p[14]
#define eca _p[15]
#define Dm _p[16]
#define Dh _p[17]
#define v _p[18]
#define _g _p[19]
#define _ion_eca	*_ppvar[0]._pval
#define _ion_ica	*_ppvar[1]._pval
#define _ion_dicadv	*_ppvar[2]._pval
 
#if MAC
#if !defined(v)
#define v _mlhv
#endif
#if !defined(h)
#define h _mlhh
#endif
#endif
 
#if defined(__cplusplus)
extern "C" {
#endif
 static int hoc_nrnpointerindex =  -1;
 static Datum* _extcall_thread;
 static Prop* _extcall_prop;
 /* external NEURON variables */
 extern double celsius;
 /* declaration of user functions */
 static void _hoc_efun(void);
 static void _hoc_rates(void);
 static void _hoc_trates(void);
 static int _mechtype;
extern void _nrn_cacheloop_reg(int, int);
extern void hoc_register_prop_size(int, int, int);
extern void hoc_register_limits(int, HocParmLimits*);
extern void hoc_register_units(int, HocParmUnits*);
extern void nrn_promote(Prop*, int, int);
extern Memb_func* memb_func;
 
#define NMODL_TEXT 1
#if NMODL_TEXT
static const char* nmodl_file_text;
static const char* nmodl_filename;
extern void hoc_reg_nmodl_text(int, const char*);
extern void hoc_reg_nmodl_filename(int, const char*);
#endif

 extern void _nrn_setdata_reg(int, void(*)(Prop*));
 static void _setdata(Prop* _prop) {
 _extcall_prop = _prop;
 }
 static void _hoc_setdata() {
 Prop *_prop, *hoc_getdata_range(int);
 _prop = hoc_getdata_range(_mechtype);
   _setdata(_prop);
 hoc_retpushx(1.);
}
 /* connect user functions to hoc names */
 static VoidFunc hoc_intfunc[] = {
 "setdata_ca", _hoc_setdata,
 "efun_ca", _hoc_efun,
 "rates_ca", _hoc_rates,
 "trates_ca", _hoc_trates,
 0, 0
};
#define efun efun_ca
 extern double efun( _threadargsprotocomma_ double );
 #define _zmexp _thread[0]._pval[0]
 #define _zhexp _thread[0]._pval[1]
 /* declare global and static user variables */
#define cai cai_ca
 double cai = 0;
#define cao cao_ca
 double cao = 2.5;
 /* some parameters have upper and lower limits */
 static HocParmLimits _hoc_parm_limits[] = {
 0,0,0
};
 static HocParmUnits _hoc_parm_units[] = {
 "cao_ca", "mM",
 "cai_ca", "mM",
 "gbar_ca", "pS/um2",
 "vshift_ca", "mV",
 "temp_ca", "degC",
 "vmin_ca", "mV",
 "vmax_ca", "mV",
 "gca_ca", "pS/um2",
 "mtau_ca", "ms",
 "htau_ca", "ms",
 0,0
};
 static double delta_t = 1;
 static double h0 = 0;
 static double m0 = 0;
 /* connect global user variables to hoc */
 static DoubScal hoc_scdoub[] = {
 "cao_ca", &cao_ca,
 "cai_ca", &cai_ca,
 0,0
};
 static DoubVec hoc_vdoub[] = {
 0,0,0
};
 static double _sav_indep;
 static void nrn_alloc(Prop*);
static void  nrn_init(_NrnThread*, _Memb_list*, int);
static void nrn_state(_NrnThread*, _Memb_list*, int);
 static void nrn_cur(_NrnThread*, _Memb_list*, int);
static void  nrn_jacob(_NrnThread*, _Memb_list*, int);
 
static int _ode_count(int);
static void _ode_map(int, double**, double**, double*, Datum*, double*, int);
static void _ode_spec(_NrnThread*, _Memb_list*, int);
static void _ode_matsol(_NrnThread*, _Memb_list*, int);
 
#define _cvode_ieq _ppvar[3]._i
 static void _ode_matsol_instance1(_threadargsproto_);
 /* connect range variables in _p that hoc is supposed to know about */
 static const char *_mechanism[] = {
 "7.7.0",
"ca",
 "gbar_ca",
 "vshift_ca",
 "temp_ca",
 "q10_ca",
 "vmin_ca",
 "vmax_ca",
 0,
 "gca_ca",
 "minf_ca",
 "hinf_ca",
 "mtau_ca",
 "htau_ca",
 "tadj_ca",
 0,
 "m_ca",
 "h_ca",
 0,
 0};
 static Symbol* _ca_sym;
 
extern Prop* need_memb(Symbol*);

static void nrn_alloc(Prop* _prop) {
	Prop *prop_ion;
	double *_p; Datum *_ppvar;
 	_p = nrn_prop_data_alloc(_mechtype, 20, _prop);
 	/*initialize range parameters*/
 	gbar = 0.1;
 	vshift = 0;
 	temp = 23;
 	q10 = 2.3;
 	vmin = -120;
 	vmax = 100;
 	_prop->param = _p;
 	_prop->param_size = 20;
 	_ppvar = nrn_prop_datum_alloc(_mechtype, 4, _prop);
 	_prop->dparam = _ppvar;
 	/*connect ionic variables to this model*/
 prop_ion = need_memb(_ca_sym);
 nrn_promote(prop_ion, 0, 1);
 	_ppvar[0]._pval = &prop_ion->param[0]; /* eca */
 	_ppvar[1]._pval = &prop_ion->param[3]; /* ica */
 	_ppvar[2]._pval = &prop_ion->param[4]; /* _ion_dicadv */
 
}
 static void _initlists();
  /* some states have an absolute tolerance */
 static Symbol** _atollist;
 static HocStateTolerance _hoc_state_tol[] = {
 0,0
};
 static void _thread_mem_init(Datum*);
 static void _thread_cleanup(Datum*);
 static void _update_ion_pointer(Datum*);
 extern Symbol* hoc_lookup(const char*);
extern void _nrn_thread_reg(int, int, void(*)(Datum*));
extern void _nrn_thread_table_reg(int, void(*)(double*, Datum*, Datum*, _NrnThread*, int));
extern void hoc_register_tolerance(int, HocStateTolerance*, Symbol***);
extern void _cvode_abstol( Symbol**, double*, int);

 void _cal_mh_reg() {
	int _vectorized = 1;
  _initlists();
 	ion_reg("ca", -10000.);
 	_ca_sym = hoc_lookup("ca_ion");
 	register_mech(_mechanism, nrn_alloc,nrn_cur, nrn_jacob, nrn_state, nrn_init, hoc_nrnpointerindex, 2);
  _extcall_thread = (Datum*)ecalloc(1, sizeof(Datum));
  _thread_mem_init(_extcall_thread);
 _mechtype = nrn_get_mechtype(_mechanism[1]);
     _nrn_setdata_reg(_mechtype, _setdata);
     _nrn_thread_reg(_mechtype, 1, _thread_mem_init);
     _nrn_thread_reg(_mechtype, 0, _thread_cleanup);
     _nrn_thread_reg(_mechtype, 2, _update_ion_pointer);
 #if NMODL_TEXT
  hoc_reg_nmodl_text(_mechtype, nmodl_file_text);
  hoc_reg_nmodl_filename(_mechtype, nmodl_filename);
#endif
  hoc_register_prop_size(_mechtype, 20, 4);
  hoc_register_dparam_semantics(_mechtype, 0, "ca_ion");
  hoc_register_dparam_semantics(_mechtype, 1, "ca_ion");
  hoc_register_dparam_semantics(_mechtype, 2, "ca_ion");
  hoc_register_dparam_semantics(_mechtype, 3, "cvodeieq");
 	hoc_register_cvode(_mechtype, _ode_count, _ode_map, _ode_spec, _ode_matsol);
 	hoc_register_tolerance(_mechtype, _hoc_state_tol, &_atollist);
 	hoc_register_var(hoc_scdoub, hoc_vdoub, hoc_intfunc);
 	ivoc_help("help ?1 ca /Users/salvadord/Documents/ISB/Models/M1_NetPyNE_CellReports_2023/sim/mod/cal_mh.mod\n");
 hoc_register_limits(_mechtype, _hoc_parm_limits);
 hoc_register_units(_mechtype, _hoc_parm_units);
 }
 
#define FARADAY _nrnunit_FARADAY[_nrnunit_use_legacy_]
static double _nrnunit_FARADAY[2] = {0x1.78e555060882cp+16, 96485.3}; /* 96485.3321233100141 */
 
#define R _nrnunit_R[_nrnunit_use_legacy_]
static double _nrnunit_R[2] = {0x1.0a1013e8990bep+3, 8.3145}; /* 8.3144626181532395 */
 
#define PI _nrnunit_PI[_nrnunit_use_legacy_]
static double _nrnunit_PI[2] = {0x1.921fb54442d18p+1, 3.14159}; /* 3.14159265358979312 */
 /*Top LOCAL _zmexp , _zhexp */
static int _reset;
static char *modelname = "";

static int error;
static int _ninits = 0;
static int _match_recurse=1;
static void _modl_cleanup(){ _match_recurse=1;}
static int rates(_threadargsprotocomma_ double);
static int trates(_threadargsprotocomma_ double);
 
static int _ode_spec1(_threadargsproto_);
/*static int _ode_matsol1(_threadargsproto_);*/
 static int _slist1[2], _dlist1[2];
 static int states(_threadargsproto_);
 
/*CVODE*/
 static int _ode_spec1 (double* _p, Datum* _ppvar, Datum* _thread, _NrnThread* _nt) {int _reset = 0; {
   trates ( _threadargscomma_ v + vshift ) ;
   Dm = ( minf - m ) / mtau ;
   Dh = ( hinf - h ) / htau ;
   }
 return _reset;
}
 static int _ode_matsol1 (double* _p, Datum* _ppvar, Datum* _thread, _NrnThread* _nt) {
 trates ( _threadargscomma_ v + vshift ) ;
 Dm = Dm  / (1. - dt*( ( ( ( - 1.0 ) ) ) / mtau )) ;
 Dh = Dh  / (1. - dt*( ( ( ( - 1.0 ) ) ) / htau )) ;
  return 0;
}
 /*END CVODE*/
 static int states (double* _p, Datum* _ppvar, Datum* _thread, _NrnThread* _nt) { {
   trates ( _threadargscomma_ v + vshift ) ;
    m = m + (1. - exp(dt*(( ( ( - 1.0 ) ) ) / mtau)))*(- ( ( ( minf ) ) / mtau ) / ( ( ( ( - 1.0 ) ) ) / mtau ) - m) ;
    h = h + (1. - exp(dt*(( ( ( - 1.0 ) ) ) / htau)))*(- ( ( ( hinf ) ) / htau ) / ( ( ( ( - 1.0 ) ) ) / htau ) - h) ;
   }
  return 0;
}
 
static int  trates ( _threadargsprotocomma_ double _lv ) {
   rates ( _threadargscomma_ _lv ) ;
    return 0; }
 
static void _hoc_trates(void) {
  double _r;
   double* _p; Datum* _ppvar; Datum* _thread; _NrnThread* _nt;
   if (_extcall_prop) {_p = _extcall_prop->param; _ppvar = _extcall_prop->dparam;}else{ _p = (double*)0; _ppvar = (Datum*)0; }
  _thread = _extcall_thread;
  _nt = nrn_threads;
 _r = 1.;
 trates ( _p, _ppvar, _thread, _nt, *getarg(1) );
 hoc_retpushx(_r);
}
 
static int  rates ( _threadargsprotocomma_ double _lvm ) {
   double _la , _lb ;
 tadj = pow( q10 , ( ( celsius - temp ) / 10.0 ) ) ;
   _la = 0.055 * ( - 27.0 - _lvm ) / ( exp ( ( - 27.0 - _lvm ) / 3.8 ) - 1.0 ) ;
   _lb = 0.94 * exp ( ( - 75.0 - _lvm ) / 17.0 ) ;
   mtau = 1.0 / tadj / ( _la + _lb ) ;
   minf = _la / ( _la + _lb ) ;
   _la = 0.000457 * exp ( ( - 13.0 - _lvm ) / 50.0 ) ;
   _lb = 0.0065 / ( exp ( ( - _lvm - 15.0 ) / 28.0 ) + 1.0 ) ;
   htau = 1.0 / tadj / ( _la + _lb ) ;
   hinf = _la / ( _la + _lb ) ;
    return 0; }
 
static void _hoc_rates(void) {
  double _r;
   double* _p; Datum* _ppvar; Datum* _thread; _NrnThread* _nt;
   if (_extcall_prop) {_p = _extcall_prop->param; _ppvar = _extcall_prop->dparam;}else{ _p = (double*)0; _ppvar = (Datum*)0; }
  _thread = _extcall_thread;
  _nt = nrn_threads;
 _r = 1.;
 rates ( _p, _ppvar, _thread, _nt, *getarg(1) );
 hoc_retpushx(_r);
}
 
double efun ( _threadargsprotocomma_ double _lz ) {
   double _lefun;
 if ( fabs ( _lz ) < 1e-4 ) {
     _lefun = 1.0 - _lz / 2.0 ;
     }
   else {
     _lefun = _lz / ( exp ( _lz ) - 1.0 ) ;
     }
   
return _lefun;
 }
 
static void _hoc_efun(void) {
  double _r;
   double* _p; Datum* _ppvar; Datum* _thread; _NrnThread* _nt;
   if (_extcall_prop) {_p = _extcall_prop->param; _ppvar = _extcall_prop->dparam;}else{ _p = (double*)0; _ppvar = (Datum*)0; }
  _thread = _extcall_thread;
  _nt = nrn_threads;
 _r =  efun ( _p, _ppvar, _thread, _nt, *getarg(1) );
 hoc_retpushx(_r);
}
 
static int _ode_count(int _type){ return 2;}
 
static void _ode_spec(_NrnThread* _nt, _Memb_list* _ml, int _type) {
   double* _p; Datum* _ppvar; Datum* _thread;
   Node* _nd; double _v; int _iml, _cntml;
  _cntml = _ml->_nodecount;
  _thread = _ml->_thread;
  for (_iml = 0; _iml < _cntml; ++_iml) {
    _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];
    _nd = _ml->_nodelist[_iml];
    v = NODEV(_nd);
  eca = _ion_eca;
     _ode_spec1 (_p, _ppvar, _thread, _nt);
  }}
 
static void _ode_map(int _ieq, double** _pv, double** _pvdot, double* _pp, Datum* _ppd, double* _atol, int _type) { 
	double* _p; Datum* _ppvar;
 	int _i; _p = _pp; _ppvar = _ppd;
	_cvode_ieq = _ieq;
	for (_i=0; _i < 2; ++_i) {
		_pv[_i] = _pp + _slist1[_i];  _pvdot[_i] = _pp + _dlist1[_i];
		_cvode_abstol(_atollist, _atol, _i);
	}
 }
 
static void _ode_matsol_instance1(_threadargsproto_) {
 _ode_matsol1 (_p, _ppvar, _thread, _nt);
 }
 
static void _ode_matsol(_NrnThread* _nt, _Memb_list* _ml, int _type) {
   double* _p; Datum* _ppvar; Datum* _thread;
   Node* _nd; double _v; int _iml, _cntml;
  _cntml = _ml->_nodecount;
  _thread = _ml->_thread;
  for (_iml = 0; _iml < _cntml; ++_iml) {
    _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];
    _nd = _ml->_nodelist[_iml];
    v = NODEV(_nd);
  eca = _ion_eca;
 _ode_matsol_instance1(_threadargs_);
 }}
 
static void _thread_mem_init(Datum* _thread) {
   _thread[0]._pval = (double*)ecalloc(2, sizeof(double));
 }
 
static void _thread_cleanup(Datum* _thread) {
   free((void*)(_thread[0]._pval));
 }
 extern void nrn_update_ion_pointer(Symbol*, Datum*, int, int);
 static void _update_ion_pointer(Datum* _ppvar) {
   nrn_update_ion_pointer(_ca_sym, _ppvar, 0, 0);
   nrn_update_ion_pointer(_ca_sym, _ppvar, 1, 3);
   nrn_update_ion_pointer(_ca_sym, _ppvar, 2, 4);
 }

static void initmodel(double* _p, Datum* _ppvar, Datum* _thread, _NrnThread* _nt) {
  int _i; double _save;{
  h = h0;
  m = m0;
 {
   trates ( _threadargscomma_ v + vshift ) ;
   m = minf ;
   h = hinf ;
   }
 
}
}

static void nrn_init(_NrnThread* _nt, _Memb_list* _ml, int _type){
double* _p; Datum* _ppvar; Datum* _thread;
Node *_nd; double _v; int* _ni; int _iml, _cntml;
#if CACHEVEC
    _ni = _ml->_nodeindices;
#endif
_cntml = _ml->_nodecount;
_thread = _ml->_thread;
for (_iml = 0; _iml < _cntml; ++_iml) {
 _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];
#if CACHEVEC
  if (use_cachevec) {
    _v = VEC_V(_ni[_iml]);
  }else
#endif
  {
    _nd = _ml->_nodelist[_iml];
    _v = NODEV(_nd);
  }
 v = _v;
  eca = _ion_eca;
 initmodel(_p, _ppvar, _thread, _nt);
 }
}

static double _nrn_current(double* _p, Datum* _ppvar, Datum* _thread, _NrnThread* _nt, double _v){double _current=0.;v=_v;{ {
   gca = tadj * gbar * m * m * h ;
   ica = ( 1e-4 ) * gca * ( v - eca ) ;
   }
 _current += ica;

} return _current;
}

static void nrn_cur(_NrnThread* _nt, _Memb_list* _ml, int _type) {
double* _p; Datum* _ppvar; Datum* _thread;
Node *_nd; int* _ni; double _rhs, _v; int _iml, _cntml;
#if CACHEVEC
    _ni = _ml->_nodeindices;
#endif
_cntml = _ml->_nodecount;
_thread = _ml->_thread;
for (_iml = 0; _iml < _cntml; ++_iml) {
 _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];
#if CACHEVEC
  if (use_cachevec) {
    _v = VEC_V(_ni[_iml]);
  }else
#endif
  {
    _nd = _ml->_nodelist[_iml];
    _v = NODEV(_nd);
  }
  eca = _ion_eca;
 _g = _nrn_current(_p, _ppvar, _thread, _nt, _v + .001);
 	{ double _dica;
  _dica = ica;
 _rhs = _nrn_current(_p, _ppvar, _thread, _nt, _v);
  _ion_dicadv += (_dica - ica)/.001 ;
 	}
 _g = (_g - _rhs)/.001;
  _ion_ica += ica ;
#if CACHEVEC
  if (use_cachevec) {
	VEC_RHS(_ni[_iml]) -= _rhs;
  }else
#endif
  {
	NODERHS(_nd) -= _rhs;
  }
 
}
 
}

static void nrn_jacob(_NrnThread* _nt, _Memb_list* _ml, int _type) {
double* _p; Datum* _ppvar; Datum* _thread;
Node *_nd; int* _ni; int _iml, _cntml;
#if CACHEVEC
    _ni = _ml->_nodeindices;
#endif
_cntml = _ml->_nodecount;
_thread = _ml->_thread;
for (_iml = 0; _iml < _cntml; ++_iml) {
 _p = _ml->_data[_iml];
#if CACHEVEC
  if (use_cachevec) {
	VEC_D(_ni[_iml]) += _g;
  }else
#endif
  {
     _nd = _ml->_nodelist[_iml];
	NODED(_nd) += _g;
  }
 
}
 
}

static void nrn_state(_NrnThread* _nt, _Memb_list* _ml, int _type) {
double* _p; Datum* _ppvar; Datum* _thread;
Node *_nd; double _v = 0.0; int* _ni; int _iml, _cntml;
#if CACHEVEC
    _ni = _ml->_nodeindices;
#endif
_cntml = _ml->_nodecount;
_thread = _ml->_thread;
for (_iml = 0; _iml < _cntml; ++_iml) {
 _p = _ml->_data[_iml]; _ppvar = _ml->_pdata[_iml];
 _nd = _ml->_nodelist[_iml];
#if CACHEVEC
  if (use_cachevec) {
    _v = VEC_V(_ni[_iml]);
  }else
#endif
  {
    _nd = _ml->_nodelist[_iml];
    _v = NODEV(_nd);
  }
 v=_v;
{
  eca = _ion_eca;
 {   states(_p, _ppvar, _thread, _nt);
  } }}

}

static void terminal(){}

static void _initlists(){
 double _x; double* _p = &_x;
 int _i; static int _first = 1;
  if (!_first) return;
 _slist1[0] = &(m) - _p;  _dlist1[0] = &(Dm) - _p;
 _slist1[1] = &(h) - _p;  _dlist1[1] = &(Dh) - _p;
_first = 0;
}

#if defined(__cplusplus)
} /* extern "C" */
#endif

#if NMODL_TEXT
static const char* nmodl_filename = "/Users/salvadord/Documents/ISB/Models/M1_NetPyNE_CellReports_2023/sim/mod/cal_mh.mod";
static const char* nmodl_file_text = 
  "\n"
  "COMMENT\n"
  "26 Ago 2002 Modification of original channel to allow variable time step and to correct an initialization error.\n"
  "    Done by Michael Hines(michael.hines@yale.e) and Ruggero Scorcioni(rscorcio@gmu.edu) at EU Advance Course in Computational Neuroscience. Obidos, Portugal\n"
  "\n"
  "ca.mod\n"
  "Uses fixed eca instead of GHK eqn\n"
  "\n"
  "HVA Ca current\n"
  "Based on Reuveni, Friedman, Amitai and Gutnick (1993) J. Neurosci. 13:\n"
  "4609-4621.\n"
  "\n"
  "Author: Zach Mainen, Salk Institute, 1994, zach@salk.edu\n"
  "\n"
  "ENDCOMMENT\n"
  "\n"
  "INDEPENDENT {t FROM 0 TO 1 WITH 1 (ms)}\n"
  "\n"
  "NEURON {\n"
  "	SUFFIX ca\n"
  "	USEION ca READ eca WRITE ica\n"
  "	RANGE m, h, gca, gbar\n"
  "	RANGE minf, hinf, mtau, htau\n"
  "	RANGE q10, temp, tadj, vmin, vmax, vshift\n"
  "}\n"
  "\n"
  "PARAMETER {\n"
  "	gbar = 0.1   	(pS/um2)	: 0.12 mho/cm2\n"
  "	vshift = 0	(mV)		: voltage shift (affects all)\n"
  "\n"
  "	cao  = 2.5	(mM)	        : external ca concentration\n"
  "	cai		(mM)\n"
  "						\n"
  "	temp = 23	(degC)		: original temp \n"
  "	q10  = 2.3			: temperature sensitivity\n"
  "\n"
  "	v 		(mV)\n"
  "	dt		(ms)\n"
  "	celsius		(degC)\n"
  "	vmin = -120	(mV)\n"
  "	vmax = 100	(mV)\n"
  "}\n"
  "\n"
  "\n"
  "UNITS {\n"
  "	(mA) = (milliamp)\n"
  "	(mV) = (millivolt)\n"
  "	(pS) = (picosiemens)\n"
  "	(um) = (micron)\n"
  "	FARADAY = (faraday) (coulomb)\n"
  "	R = (k-mole) (joule/degC)\n"
  "	PI	= (pi) (1)\n"
  "} \n"
  "\n"
  "ASSIGNED {\n"
  "	ica 		(mA/cm2)\n"
  "	gca		(pS/um2)\n"
  "	eca		(mV)\n"
  "	minf 		hinf\n"
  "	mtau (ms)	htau (ms)\n"
  "	tadj\n"
  "}\n"
  " \n"
  "\n"
  "STATE { m h }\n"
  "\n"
  "INITIAL { \n"
  "	trates(v+vshift)\n"
  "	m = minf\n"
  "	h = hinf\n"
  "}\n"
  "\n"
  "BREAKPOINT {\n"
  "        SOLVE states METHOD cnexp\n"
  "        gca = tadj*gbar*m*m*h\n"
  "	ica = (1e-4) * gca * (v - eca)\n"
  "} \n"
  "\n"
  "LOCAL mexp, hexp\n"
  "\n"
  ":PROCEDURE states() {\n"
  ":        trates(v+vshift)      \n"
  ":        m = m + mexp*(minf-m)\n"
  ":        h = h + hexp*(hinf-h)\n"
  ":	VERBATIM\n"
  ":	return 0;\n"
  ":	ENDVERBATIM\n"
  ":}\n"
  "\n"
  "DERIVATIVE states {\n"
  "        trates(v+vshift)      \n"
  "        m' =  (minf-m)/mtau\n"
  "        h' =  (hinf-h)/htau\n"
  "}\n"
  "\n"
  "PROCEDURE trates(v) {  \n"
  "                      \n"
  "        \n"
  "        : TABLE minf, hinf, mtau, htau \n"
  "	: DEPEND  celsius, temp\n"
  "	:\n"
  "	: FROM vmin TO vmax WITH 199\n"
  "\n"
  "	rates(v): not consistently executed from here if usetable == 1\n"
  "\n"
  ":        tinc = -dt * tadj\n"
  "\n"
  ":        mexp = 1 - exp(tinc/mtau)\n"
  ":        hexp = 1 - exp(tinc/htau)\n"
  "}\n"
  "\n"
  "\n"
  "PROCEDURE rates(vm) {  \n"
  "        LOCAL  a, b\n"
  "\n"
  "        tadj = q10^((celsius - temp)/10)\n"
  "\n"
  "	a = 0.055*(-27 - vm)/(exp((-27-vm)/3.8) - 1)\n"
  "	b = 0.94*exp((-75-vm)/17)\n"
  "	\n"
  "	mtau = 1/tadj/(a+b)\n"
  "	minf = a/(a+b)\n"
  "\n"
  "		:\"h\" inactivation \n"
  "\n"
  "	a = 0.000457*exp((-13-vm)/50)\n"
  "	b = 0.0065/(exp((-vm-15)/28) + 1)\n"
  "\n"
  "	htau = 1/tadj/(a+b)\n"
  "	hinf = a/(a+b)\n"
  "}\n"
  "\n"
  "FUNCTION efun(z) {\n"
  "	if (fabs(z) < 1e-4) {\n"
  "		efun = 1 - z/2\n"
  "	}else{\n"
  "		efun = z/(exp(z) - 1)\n"
  "	}\n"
  "}\n"
  ;
#endif