/*
   There are a total of 6 entries in the algebraic variable array.
   There are a total of 3 entries in each of the rate and state variable arrays.
   There are a total of 7 entries in the constant variable array.
 */
/*
 * VOI is t in component main (second).
 * CONSTANTS[0] is F in component main (C_per_mol).
 * CONSTANTS[1] is RT in component main (J_per_mol).
 * STATES[0] is q_i_1 in component main (mole).
 * STATES[1] is q_i_2 in component main (mole).
 * STATES[2] is q_e_m in component main (coulomb).
 * ALGEBRAIC[5] is v_i_m in component main (mol_per_s).
 * ALGEBRAIC[0] is u_i_1 in component main (J_per_mol).
 * ALGEBRAIC[3] is u_i_2 in component main (J_per_mol).
 * CONSTANTS[2] is u_e_m in component main (J_per_C).
 * ALGEBRAIC[2] is u_f_m in component main (J_per_mol).
 * ALGEBRAIC[4] is u_r_m in component main (J_per_mol).
 * ALGEBRAIC[1] is u_nernst in component main (J_per_C).
 * CONSTANTS[3] is z_q in component main (dim).
 * CONSTANTS[4] is K_q_i_1 in component main (per_mol).
 * CONSTANTS[5] is K_q_i_2 in component main (per_mol).
 * CONSTANTS[6] is kappa_i_m in component main (mol_per_s).
 * RATES[0] is d/dt q_i_1 in component main (mole).
 * RATES[1] is d/dt q_i_2 in component main (mole).
 * RATES[2] is d/dt q_e_m in component main (coulomb).
 */
void
initConsts(double* CONSTANTS, double* RATES, double *STATES)
{
CONSTANTS[0] = 9.64853321e4;
CONSTANTS[1] = 2578.73058;
STATES[0] = 3;
STATES[1] = 0;
STATES[2] = 0;
CONSTANTS[2] = -0.080;
CONSTANTS[3] = 1;
CONSTANTS[4] = 20;
CONSTANTS[5] = 20;
CONSTANTS[6] = 10;
}
void
computeRates(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[0] =  CONSTANTS[1]*log( CONSTANTS[4]*STATES[0]);
ALGEBRAIC[2] = ALGEBRAIC[0]+ CONSTANTS[3]*CONSTANTS[0]*CONSTANTS[2];
ALGEBRAIC[3] =  CONSTANTS[1]*log( CONSTANTS[5]*STATES[1]);
ALGEBRAIC[4] = ALGEBRAIC[3];
ALGEBRAIC[5] =  CONSTANTS[6]*(exp(ALGEBRAIC[2]/CONSTANTS[1]) - exp(ALGEBRAIC[4]/CONSTANTS[1]));
RATES[0] = - ALGEBRAIC[5];
RATES[1] = ALGEBRAIC[5];
RATES[2] =  - CONSTANTS[3]*CONSTANTS[0]*ALGEBRAIC[5];
}
void
computeVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[0] =  CONSTANTS[1]*log( CONSTANTS[4]*STATES[0]);
ALGEBRAIC[2] = ALGEBRAIC[0]+ CONSTANTS[3]*CONSTANTS[0]*CONSTANTS[2];
ALGEBRAIC[3] =  CONSTANTS[1]*log( CONSTANTS[5]*STATES[1]);
ALGEBRAIC[4] = ALGEBRAIC[3];
ALGEBRAIC[5] =  CONSTANTS[6]*(exp(ALGEBRAIC[2]/CONSTANTS[1]) - exp(ALGEBRAIC[4]/CONSTANTS[1]));
ALGEBRAIC[1] =  (CONSTANTS[1]/( CONSTANTS[3]*CONSTANTS[0]))*log(( CONSTANTS[5]*STATES[1])/( CONSTANTS[4]*STATES[0]));
}