/*
   There are a total of 27 entries in the algebraic variable array.
   There are a total of 6 entries in each of the rate and state variable arrays.
   There are a total of 27 entries in the constant variable array.
 */
/*
 * VOI is time in component environment (second).
 * CONSTANTS[0] is C_m in component environment (fF).
 * STATES[0] is q_Ca_o in component environment (fmol).
 * STATES[1] is q_Ca_i in component environment (fmol).
 * STATES[2] is q_s00_TCC in component environment (fmol).
 * STATES[3] is q_s10_TCC in component environment (fmol).
 * STATES[4] is q_s01_TCC in component environment (fmol).
 * STATES[5] is q_s11_TCC in component environment (fmol).
 * CONSTANTS[1] is q_mem in component environment (fC).
 * CONSTANTS[23] is V_mem in component environment (volt).
 * CONSTANTS[2] is R in component environment (J_per_K_per_mol).
 * CONSTANTS[3] is T in component environment (kelvin).
 * CONSTANTS[4] is F in component environment (C_per_mol).
 * ALGEBRAIC[9] is v_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[26] is I_mem_TCC in component TCC (fA).
 * CONSTANTS[24] is I_stim in component environment (fA).
 * CONSTANTS[5] is stimPeriod in component environment (second).
 * CONSTANTS[6] is stimDuration in component environment (second).
 * ALGEBRAIC[0] is tPeriod in component environment (second).
 * CONSTANTS[7] is kappa_TCC in component TCC_parameters (fmol_per_sec).
 * CONSTANTS[8] is kappa_R1_TCC in component TCC_parameters (fmol_per_sec).
 * CONSTANTS[9] is kappa_R2_TCC in component TCC_parameters (fmol_per_sec).
 * CONSTANTS[10] is kappa_R3_TCC in component TCC_parameters (fmol_per_sec).
 * CONSTANTS[11] is kappa_R4_TCC in component TCC_parameters (fmol_per_sec).
 * CONSTANTS[12] is K_Ca_i in component TCC_parameters (per_fmol).
 * CONSTANTS[13] is K_Ca_o in component TCC_parameters (per_fmol).
 * CONSTANTS[14] is K_S00_TCC in component TCC_parameters (per_fmol).
 * CONSTANTS[15] is K_S10_TCC in component TCC_parameters (per_fmol).
 * CONSTANTS[16] is K_S01_TCC in component TCC_parameters (per_fmol).
 * CONSTANTS[17] is K_S11_TCC in component TCC_parameters (per_fmol).
 * CONSTANTS[18] is zCa in component TCC_parameters (dimensionless).
 * CONSTANTS[19] is z_df in component TCC_parameters (dimensionless).
 * CONSTANTS[20] is z_ff in component TCC_parameters (dimensionless).
 * CONSTANTS[21] is z_dr in component TCC_parameters (dimensionless).
 * CONSTANTS[22] is z_fr in component TCC_parameters (dimensionless).
 * ALGEBRAIC[1] is u_Ca_i in component TCC (J_per_mol).
 * ALGEBRAIC[2] is u_Ca_o in component TCC (J_per_mol).
 * CONSTANTS[25] is V_mem in component TCC (J_per_C).
 * CONSTANTS[26] is Am_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[7] is Af_Ca in component TCC (J_per_mol).
 * ALGEBRAIC[8] is Ar_Ca in component TCC (J_per_mol).
 * ALGEBRAIC[22] is v_s00_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[23] is v_s10_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[24] is v_s01_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[25] is v_s11_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[18] is v_R1_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[19] is v_R2_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[20] is v_R3_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[21] is v_R4_TCC in component TCC (fmol_per_sec).
 * ALGEBRAIC[3] is mu_s00_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[4] is mu_s10_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[5] is mu_s01_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[6] is mu_s11_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[10] is Af_R1_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[11] is Ar_R1_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[12] is Af_R2_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[13] is Ar_R2_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[14] is Af_R3_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[15] is Ar_R3_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[16] is Af_R4_TCC in component TCC (J_per_mol).
 * ALGEBRAIC[17] is Ar_R4_TCC in component TCC (J_per_mol).
 * RATES[1] is d/dt q_Ca_i in component environment (fmol).
 * RATES[0] is d/dt q_Ca_o in component environment (fmol).
 * RATES[2] is d/dt q_s00_TCC in component environment (fmol).
 * RATES[3] is d/dt q_s10_TCC in component environment (fmol).
 * RATES[4] is d/dt q_s01_TCC in component environment (fmol).
 * RATES[5] is d/dt q_s11_TCC in component environment (fmol).
 * There are a total of 0 condition variables.
 */
void
initConsts(double* CONSTANTS, double* RATES, double *STATES)
{
CONSTANTS[0] = 153400;
STATES[0] = 9.3276;
STATES[1] = 0.00456;
STATES[2] = 3.653271338425772e-07;
STATES[3] = 1e-16;
STATES[4] = 1e-16;
STATES[5] = 1e-16;
CONSTANTS[1] = -13039;
CONSTANTS[2] = 8.31;
CONSTANTS[3] = 310;
CONSTANTS[4] = 96500;
CONSTANTS[5] = 1;
CONSTANTS[6] = 0.0001;
CONSTANTS[7] = 5746.42;
CONSTANTS[8] = 1266.14;
CONSTANTS[9] = 4.33488;
CONSTANTS[10] = 1.34962;
CONSTANTS[11] = 7.44777;
CONSTANTS[12] = 2.20364;
CONSTANTS[13] = 14.6286;
CONSTANTS[14] = 2.10659;
CONSTANTS[15] = 0.381738;
CONSTANTS[16] = 615.294;
CONSTANTS[17] = 111.498;
CONSTANTS[18] = 2;
CONSTANTS[19] = 0.876568910405296;
CONSTANTS[20] = -0.576510778245838;
CONSTANTS[21] = -0.872117216889333;
CONSTANTS[22] = 1.73582739545622;
rootfind_0(VOI, CONSTANTS, RATES, STATES, ALGEBRAIC, pret);
CONSTANTS[24] = 0.00000;
CONSTANTS[25] = CONSTANTS[1]/CONSTANTS[0];
CONSTANTS[26] =  CONSTANTS[18]*CONSTANTS[4]*CONSTANTS[25];
RATES[1] = 0.1001;
RATES[0] = 0.1001;
RATES[2] = 0.1001;
RATES[3] = 0.1001;
RATES[4] = 0.1001;
RATES[5] = 0.1001;
}
void
computeResiduals(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
                 double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
resid[0] = RATES[1] - - ALGEBRAIC[9];
resid[1] = RATES[0] - ALGEBRAIC[9];
resid[2] = RATES[2] - ALGEBRAIC[22];
resid[3] = RATES[3] - ALGEBRAIC[23];
resid[4] = RATES[4] - ALGEBRAIC[24];
resid[5] = RATES[5] - ALGEBRAIC[25];
}
void
computeVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[0] = VOI -  floor(VOI/CONSTANTS[5])*CONSTANTS[5];
ALGEBRAIC[26] =  CONSTANTS[4]*( - CONSTANTS[18]*ALGEBRAIC[9]+ ALGEBRAIC[18]*(CONSTANTS[21] - CONSTANTS[19])+ ALGEBRAIC[19]*(CONSTANTS[21] - CONSTANTS[19])+ ALGEBRAIC[20]*(CONSTANTS[22] - CONSTANTS[20])+ ALGEBRAIC[21]*(CONSTANTS[22] - CONSTANTS[20]));
}
void
computeEssentialVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[1] =  CONSTANTS[2]*CONSTANTS[3]*log( CONSTANTS[12]*STATES[1]);
ALGEBRAIC[6] =  CONSTANTS[2]*CONSTANTS[3]*log( CONSTANTS[17]*STATES[5]);
ALGEBRAIC[7] = ALGEBRAIC[6]+ALGEBRAIC[1]+CONSTANTS[26];
ALGEBRAIC[2] =  CONSTANTS[2]*CONSTANTS[3]*log( CONSTANTS[13]*STATES[0]);
ALGEBRAIC[8] = ALGEBRAIC[6]+ALGEBRAIC[2];
ALGEBRAIC[9] = (CONSTANTS[26]==0.00000 ?  CONSTANTS[7]*(exp(ALGEBRAIC[7]/( CONSTANTS[2]*CONSTANTS[3])) - exp(ALGEBRAIC[8]/( CONSTANTS[2]*CONSTANTS[3]))) :  ((( CONSTANTS[7]*CONSTANTS[26])/( CONSTANTS[2]*CONSTANTS[3]))/(exp(CONSTANTS[26]/( CONSTANTS[2]*CONSTANTS[3])) - 1.00000))*(exp(ALGEBRAIC[7]/( CONSTANTS[2]*CONSTANTS[3])) - exp(ALGEBRAIC[8]/( CONSTANTS[2]*CONSTANTS[3]))));
ALGEBRAIC[3] =  CONSTANTS[2]*CONSTANTS[3]*log( CONSTANTS[14]*STATES[2]);
ALGEBRAIC[10] = ALGEBRAIC[3]+ CONSTANTS[19]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[4] =  CONSTANTS[2]*CONSTANTS[3]*log( CONSTANTS[15]*STATES[3]);
ALGEBRAIC[11] = ALGEBRAIC[4]+ CONSTANTS[21]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[18] =  CONSTANTS[8]*(exp(ALGEBRAIC[10]/( CONSTANTS[2]*CONSTANTS[3])) - exp(ALGEBRAIC[11]/( CONSTANTS[2]*CONSTANTS[3])));
ALGEBRAIC[14] = ALGEBRAIC[3]+ CONSTANTS[20]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[5] =  CONSTANTS[2]*CONSTANTS[3]*log( CONSTANTS[16]*STATES[4]);
ALGEBRAIC[15] = ALGEBRAIC[5]+ CONSTANTS[22]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[20] =  CONSTANTS[10]*(exp(ALGEBRAIC[14]/( CONSTANTS[2]*CONSTANTS[3])) - exp(ALGEBRAIC[15]/( CONSTANTS[2]*CONSTANTS[3])));
ALGEBRAIC[22] = - ALGEBRAIC[18] - ALGEBRAIC[20];
ALGEBRAIC[16] = ALGEBRAIC[4]+ CONSTANTS[20]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[17] = ALGEBRAIC[6]+ CONSTANTS[22]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[21] =  CONSTANTS[11]*(exp(ALGEBRAIC[16]/( CONSTANTS[2]*CONSTANTS[3])) - exp(ALGEBRAIC[17]/( CONSTANTS[2]*CONSTANTS[3])));
ALGEBRAIC[23] = ALGEBRAIC[18] - ALGEBRAIC[21];
ALGEBRAIC[12] = ALGEBRAIC[5]+ CONSTANTS[19]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[13] = ALGEBRAIC[6]+ CONSTANTS[21]*CONSTANTS[4]*CONSTANTS[25];
ALGEBRAIC[19] =  CONSTANTS[9]*(exp(ALGEBRAIC[12]/( CONSTANTS[2]*CONSTANTS[3])) - exp(ALGEBRAIC[13]/( CONSTANTS[2]*CONSTANTS[3])));
ALGEBRAIC[24] = ALGEBRAIC[20] - ALGEBRAIC[19];
ALGEBRAIC[25] = ALGEBRAIC[19]+ALGEBRAIC[21];
}
void
getStateInformation(double* SI)
{
SI[0] = 1.0;
SI[1] = 1.0;
SI[2] = 1.0;
SI[3] = 1.0;
SI[4] = 1.0;
SI[5] = 1.0;
}
void
computeRoots(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
             double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
}

void objfunc_0(double *p, double *hx, int m, int n, void *adata)
{
  struct rootfind_info* rfi = (struct rootfind_info*)adata;
#define VOI rfi->aVOI
#define CONSTANTS rfi->aCONSTANTS
#define RATES rfi->aRATES
#define STATES rfi->aSTATES
#define ALGEBRAIC rfi->aALGEBRAIC
#define pret rfi->aPRET
  CONSTANTS[23] = *p;
  *hx = (CONSTANTS[1]) - ( CONSTANTS[23]*CONSTANTS[0]);
#undef VOI
#undef CONSTANTS
#undef RATES
#undef STATES
#undef ALGEBRAIC
#undef pret
}
void rootfind_0(double VOI, double* CONSTANTS, double* RATES, 
double* STATES, double* ALGEBRAIC, int* pret)
{
  static double val = 0.1;
  double bp, work[LM_DIF_WORKSZ(1, 1)];
  struct rootfind_info rfi;
  rfi.aVOI = VOI;
  rfi.aCONSTANTS = CONSTANTS;
  rfi.aRATES = RATES;
  rfi.aSTATES = STATES;
  rfi.aALGEBRAIC = ALGEBRAIC;
  rfi.aPRET = pret;
  do_levmar(objfunc_0, &val, &bp, work, pret, 1, &rfi);
  CONSTANTS[23] = val;
}