C
C There are a total of 7 entries in the algebraic variable array.
C There are a total of 3 entries in each of the rate and state variable arrays.
C There are a total of 10 entries in the constant variable array.
C
C
C VOI is time in component environment (second).
C CONSTS(1) is q_Cai_init in component environment (fmol).
C CONSTS(2) is q_TRPN_init in component environment (fmol).
C CONSTS(3) is q_Ca_TRPN_init in component environment (fmol).
C ALGBRC(1) is q_Cai in component environment (fmol).
C ALGBRC(2) is q_TRPN in component environment (fmol).
C ALGBRC(3) is q_Ca_TRPN in component environment (fmol).
C STATES(1) is q_Cai in component TRPN (fmol).
C STATES(2) is q_TRPN in component TRPN (fmol).
C STATES(3) is q_Ca_TRPN in component TRPN (fmol).
C CONSTS(4) is kappa_R_TRPNCa in component TRPN_parameters (fmol_per_sec).
C CONSTS(5) is K_Cai in component TRPN_parameters (per_fmol).
C CONSTS(6) is K_TRPN in component TRPN_parameters (per_fmol).
C CONSTS(7) is K_Ca_TRPN in component TRPN_parameters (per_fmol).
C CONSTS(8) is R in component constants (J_per_K_per_mol).
C CONSTS(9) is T in component constants (kelvin).
C ALGBRC(4) is mu_Cai in component TRPN (J_per_mol).
C ALGBRC(5) is mu_TRPN in component TRPN (J_per_mol).
C ALGBRC(6) is mu_Ca_TRPN in component TRPN (J_per_mol).
C ALGBRC(7) is v_R_TRPNCa in component TRPN (fmol_per_sec).
C CONSTS(10) is F in component constants (C_per_mol).
C RATES(1) is d/dt q_Cai in component TRPN (fmol).
C RATES(2) is d/dt q_TRPN in component TRPN (fmol).
C RATES(3) is d/dt q_Ca_TRPN in component TRPN (fmol).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      CONSTS(1) = 6.82e-1
      CONSTS(2) = 2.57
      CONSTS(3) = 1e-16
      STATES(1) = 1e-16
      STATES(2) = 1e-16
      STATES(3) = 1e-16
      CONSTS(4) = 83.2553
      CONSTS(5) = 1.00748
      CONSTS(6) = 1.00748
      CONSTS(7) = 0.0698328
      CONSTS(8) = 8.31
      CONSTS(9) = 310
      CONSTS(10) = 96485
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) = STATES(1)+CONSTS(1)
      ALGBRC(4) =  CONSTS(8)*CONSTS(9)*log( CONSTS(5)*ALGBRC(1))
      ALGBRC(2) = STATES(2)+CONSTS(2)
      ALGBRC(5) =  CONSTS(8)*CONSTS(9)*log( CONSTS(6)*ALGBRC(2))
      ALGBRC(3) = STATES(3)+CONSTS(3)
      ALGBRC(6) =  CONSTS(8)*CONSTS(9)*log( CONSTS(7)*ALGBRC(3))
      ALGBRC(7) =  CONSTS(4)*(EXP((ALGBRC(4)+ALGBRC(5))/( CONSTS(8)*CONSTS(9))) - EXP(ALGBRC(6)/( CONSTS(8)*CONSTS(9))))
      RATES(1) = - ALGBRC(7)
      RATES(2) = - ALGBRC(7)
      RATES(3) = ALGBRC(7)
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) = STATES(1)+CONSTS(1)
      ALGBRC(4) =  CONSTS(8)*CONSTS(9)*log( CONSTS(5)*ALGBRC(1))
      ALGBRC(2) = STATES(2)+CONSTS(2)
      ALGBRC(5) =  CONSTS(8)*CONSTS(9)*log( CONSTS(6)*ALGBRC(2))
      ALGBRC(3) = STATES(3)+CONSTS(3)
      ALGBRC(6) =  CONSTS(8)*CONSTS(9)*log( CONSTS(7)*ALGBRC(3))
      ALGBRC(7) =  CONSTS(4)*(EXP((ALGBRC(4)+ALGBRC(5))/( CONSTS(8)*CONSTS(9))) - EXP(ALGBRC(6)/( CONSTS(8)*CONSTS(9))))
      RETURN
      END