C
C There are a total of 3 entries in the algebraic variable array.
C There are a total of 5 entries in each of the rate and state variable arrays.
C There are a total of 14 entries in the constant variable array.
C
C
C VOI is time in component environment (day).
C STATES(1) is X in component X (dimensionless).
C CONSTS(1) is mu0 in component X (first_order_rate_constant).
C CONSTS(2) is lamda in component X (first_order_rate_constant).
C STATES(2) is K in component K (first_order_rate_constant).
C STATES(3) is V in component V (dimensionless).
C STATES(4) is Y in component Y (dimensionless).
C CONSTS(3) is mu1 in component Y (first_order_rate_constant).
C CONSTS(4) is a in component Y (dimensionless).
C STATES(5) is Z in component Z (dimensionless).
C ALGBRC(1) is CD4 in component CD4 (dimensionless).
C CONSTS(5) is mu2 in component V (first_order_rate_constant).
C CONSTS(6) is beta in component V (first_order_rate_constant).
C CONSTS(7) is b in component V (dimensionless).
C CONSTS(8) is theta in component Z (first_order_rate_constant).
C CONSTS(9) is rho in component Z (first_order_rate_constant).
C ALGBRC(2) is f_X in component Z (dimensionless).
C ALGBRC(3) is g_V in component Z (dimensionless).
C CONSTS(10) is C1 in component Z (dimensionless).
C CONSTS(11) is C2 in component Z (dimensionless).
C CONSTS(12) is X0 in component Z (dimensionless).
C CONSTS(13) is omega in component K (first_order_rate_constant).
C CONSTS(14) is Kmax in component K (first_order_rate_constant).
C RATES(1) is d/dt X in component X (dimensionless).
C RATES(4) is d/dt Y in component Y (dimensionless).
C RATES(3) is d/dt V in component V (dimensionless).
C RATES(5) is d/dt Z in component Z (dimensionless).
C RATES(2) is d/dt K in component K (first_order_rate_constant).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      STATES(1) = 1.0E11
      CONSTS(1) = 4.0E-3
      CONSTS(2) = 4.0E8
      STATES(2) = 1.35E-14
      STATES(3) = 1.0
      STATES(4) = 1.0
      CONSTS(3) = 0.30
      CONSTS(4) = 1.0
      STATES(5) = 0.0
      CONSTS(5) = 1.0
      CONSTS(6) = 1.0E3
      CONSTS(7) = 1.0
      CONSTS(8) = 1.0E-6
      CONSTS(9) = 0.50
      CONSTS(10) = 0.04
      CONSTS(11) = 1.0E3
      CONSTS(12) = 1.0E11
      CONSTS(13) = 1.0E-16
      CONSTS(14) = 20.0
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      RATES(1) = CONSTS(2) - ( CONSTS(1)*STATES(1)+ STATES(2)*STATES(3)*STATES(1))
      RATES(4) =  STATES(2)*STATES(3)*STATES(4) -  CONSTS(3)*(1.00000+ CONSTS(4)*STATES(5))*STATES(4)
      RATES(3) =  CONSTS(6)*STATES(4) -  CONSTS(5)*(1.00000+ CONSTS(7)*STATES(5))*STATES(3)
      RATES(2) =  CONSTS(13)*STATES(3)*(CONSTS(14) - STATES(2))
      ALGBRC(2) = ( (1.00000+CONSTS(10))*STATES(1)/CONSTS(12) ** 2.00000)/(CONSTS(10)+STATES(1)/CONSTS(12) ** 2.00000)
      ALGBRC(3) = STATES(3)/(CONSTS(11)+STATES(3))
      RATES(5) =  CONSTS(8)*ALGBRC(3)+ CONSTS(9)*(ALGBRC(2) - STATES(5))*STATES(5)
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(2) = ( (1.00000+CONSTS(10))*STATES(1)/CONSTS(12) ** 2.00000)/(CONSTS(10)+STATES(1)/CONSTS(12) ** 2.00000)
      ALGBRC(3) = STATES(3)/(CONSTS(11)+STATES(3))
      ALGBRC(1) = (STATES(1)+STATES(4))/1.00000e+11
      RETURN
      END