/*
   There are a total of 5 entries in the algebraic variable array.
   There are a total of 2 entries in each of the rate and state variable arrays.
   There are a total of 4 entries in the constant variable array.
 */
/*
 * VOI is t in component main (second).
 * CONSTANTS[0] is RT in component main (J_per_mol).
 * STATES[0] is q_1 in component main (mole).
 * STATES[1] is q_2 in component main (mole).
 * ALGEBRAIC[4] is v_r in component main (mol_per_s).
 * ALGEBRAIC[0] is u_1 in component main (J_per_mol).
 * ALGEBRAIC[1] is u_2 in component main (J_per_mol).
 * ALGEBRAIC[2] is u_f in component main (J_per_mol).
 * ALGEBRAIC[3] is u_r in component main (J_per_mol).
 * CONSTANTS[1] is K_q_1 in component main (per_mol).
 * CONSTANTS[2] is K_q_2 in component main (per_mol).
 * CONSTANTS[3] is kappa_r in component main (mol_per_s).
 * RATES[0] is d/dt q_1 in component main (mole).
 * RATES[1] is d/dt q_2 in component main (mole).
 * There are a total of 0 condition variables.
 */
void
initConsts(double* CONSTANTS, double* RATES, double *STATES)
{
CONSTANTS[0] = 2578.73058;
STATES[0] = 1;
STATES[1] = 0;
CONSTANTS[1] = 1;
CONSTANTS[2] = 1;
CONSTANTS[3] = 0.1;
RATES[0] = 0.1001;
RATES[1] = 0.1001;
}
void
computeResiduals(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
                 double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
resid[0] = RATES[0] - - ALGEBRAIC[4];
resid[1] = RATES[1] - ALGEBRAIC[4];
}
void
computeVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
}
void
computeEssentialVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[0] =  CONSTANTS[0]*log( CONSTANTS[1]*STATES[0]);
ALGEBRAIC[2] = ALGEBRAIC[0];
ALGEBRAIC[1] =  CONSTANTS[0]*log( CONSTANTS[2]*STATES[1]);
ALGEBRAIC[3] = ALGEBRAIC[1];
ALGEBRAIC[4] =  CONSTANTS[3]*(exp(ALGEBRAIC[2]/CONSTANTS[0]) - exp(ALGEBRAIC[3]/CONSTANTS[0]));
}
void
getStateInformation(double* SI)
{
SI[0] = 1.0;
SI[1] = 1.0;
}
void
computeRoots(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
             double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
}