C
C There are a total of 7 entries in the algebraic variable array.
C There are a total of 2 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 STATES(1) is Ca_cyt in component Ca_cyt (micromolar).
C ALGBRC(1) is J_ERch in component J_ERch (micromolar).
C ALGBRC(2) is J_ERpump in component J_ERpump (micromolar).
C ALGBRC(3) is J_ERleak in component J_ERleak (micromolar).
C ALGBRC(5) is J_CaPr in component J_CaPr (micromolar).
C ALGBRC(7) is J_Pr in component J_Pr (micromolar).
C STATES(2) is Ca_ER in component Ca_ER (micromolar).
C CONSTS(1) is beta_ER in component Ca_ER (dimensionless).
C CONSTS(2) is rho_ER in component Ca_ER (dimensionless).
C CONSTS(3) is k_ERch in component J_ERch (micromolar).
C CONSTS(4) is K_ch in component J_ERch (micromolar).
C CONSTS(5) is k_ERpump in component J_ERpump (per_second).
C CONSTS(6) is k_ERleak in component J_ERleak (per_second).
C CONSTS(7) is k_min in component J_CaPr (per_second).
C ALGBRC(4) is CaPr in component CaPr (micromolar).
C CONSTS(8) is k_plus in component J_Pr (per_micromolar_per_second).
C ALGBRC(6) is Pr in component Pr (micromolar).
C CONSTS(9) is Ca_tot in component CaPr (micromolar).
C CONSTS(10) is Pr_tot in component Pr (micromolar).
C RATES(1) is d/dt Ca_cyt in component Ca_cyt (micromolar).
C RATES(2) is d/dt Ca_ER in component Ca_ER (micromolar).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      STATES(1) = 0.01
      STATES(2) = 20
      CONSTS(1) = 0.0025
      CONSTS(2) = 0.01
      CONSTS(3) = 0.001
      CONSTS(4) = 5
      CONSTS(5) = 20
      CONSTS(6) = 0.05
      CONSTS(7) = 0.01
      CONSTS(8) = 0.1
      CONSTS(9) = 90
      CONSTS(10) = 120
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) =  CONSTS(3)*(STATES(1) ** 2.00000/(CONSTS(4) ** 2.00000+STATES(1) ** 2.00000))*(STATES(2) - STATES(1))
      ALGBRC(2) =  CONSTS(5)*STATES(1)
      ALGBRC(3) =  CONSTS(6)*(STATES(2) - STATES(1))
      RATES(2) =  (CONSTS(1)/CONSTS(2))*((ALGBRC(2) - ALGBRC(3)) - ALGBRC(1))*1.00000
      ALGBRC(4) = CONSTS(9) - (STATES(1)+ (CONSTS(2)/CONSTS(1))*STATES(2))
      ALGBRC(5) =  CONSTS(7)*ALGBRC(4)
      ALGBRC(6) = CONSTS(10) - ALGBRC(4)
      ALGBRC(7) =  CONSTS(8)*STATES(1)*ALGBRC(6)
      RATES(1) =  (((ALGBRC(1) - ALGBRC(2))+ALGBRC(3)+ALGBRC(5)) - ALGBRC(7))*1.00000
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) =  CONSTS(3)*(STATES(1) ** 2.00000/(CONSTS(4) ** 2.00000+STATES(1) ** 2.00000))*(STATES(2) - STATES(1))
      ALGBRC(2) =  CONSTS(5)*STATES(1)
      ALGBRC(3) =  CONSTS(6)*(STATES(2) - STATES(1))
      ALGBRC(4) = CONSTS(9) - (STATES(1)+ (CONSTS(2)/CONSTS(1))*STATES(2))
      ALGBRC(5) =  CONSTS(7)*ALGBRC(4)
      ALGBRC(6) = CONSTS(10) - ALGBRC(4)
      ALGBRC(7) =  CONSTS(8)*STATES(1)*ALGBRC(6)
      RETURN
      END