C
C There are a total of 8 entries in the algebraic variable array.
C There are a total of 4 entries in each of the rate and state variable arrays.
C There are a total of 17 entries in the constant variable array.
C
C
C VOI is time in component environment (minute).
C CONSTS(1) is AMK in component electrolytes (dimensionless).
C CONSTS(2) is TVD in component electrolytes (L_per_minute).
C CONSTS(3) is NOD in component electrolytes (monovalent_mEq_per_minute).
C CONSTS(4) is STH in component electrolytes (dimensionless).
C CONSTS(5) is KOD in component electrolytes (monovalent_mEq_per_minute).
C CONSTS(6) is VUD in component electrolytes (L_per_minute).
C ALGBRC(4) is VEC in component extracellular_fluid_volume (litre).
C ALGBRC(5) is CNA in component extracellular_Na_concentration (monovalent_mEq_per_litre).
C CONSTS(7) is NID in component parameter_values (monovalent_mEq_per_minute).
C CONSTS(8) is TRPL in component parameter_values (L_per_minute).
C CONSTS(12) is NED in component extracellular_Na_concentration (monovalent_mEq_per_minute).
C STATES(1) is NAE in component extracellular_Na_concentration (monovalent_mEq).
C CONSTS(13) is AMK1 in component aldosterone_effect_on_cellular_K_distribution (dimensionless).
C CONSTS(9) is ALCLK in component parameter_values (dimensionless).
C ALGBRC(6) is CKE in component extracellular_K_concentration (monovalent_mEq_per_litre).
C ALGBRC(1) is KE in component extracellular_K_concentration (monovalent_mEq).
C STATES(2) is KTOT in component extracellular_K_concentration (monovalent_mEq).
C CONSTS(10) is KID in component parameter_values (monovalent_mEq_per_minute).
C CONSTS(14) is KTOTD in component extracellular_K_concentration (monovalent_mEq_per_minute).
C STATES(3) is VIC in component intracellular_fluid_volume (litre).
C ALGBRC(3) is CKI in component intracellular_K_concentration (monovalent_mEq_per_litre).
C ALGBRC(2) is KI in component intracellular_K_concentration (monovalent_mEq).
C ALGBRC(8) is VID in component intracellular_fluid_volume (L_per_minute).
C CONSTS(11) is VIDML in component parameter_values (litre2_per_monovalent_mEq_per_minute).
C ALGBRC(7) is CCD in component intracellular_fluid_volume (monovalent_mEq_per_litre).
C STATES(4) is VTW in component total_body_water (litre).
C RATES(1) is d/dt NAE in component extracellular_Na_concentration (monovalent_mEq).
C RATES(2) is d/dt KTOT in component extracellular_K_concentration (monovalent_mEq).
C RATES(3) is d/dt VIC in component intracellular_fluid_volume (litre).
C RATES(4) is d/dt VTW in component total_body_water (litre).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      CONSTS(1) = 1.037
      CONSTS(2) = 0.000980838
      CONSTS(3) = 0.0959449
      CONSTS(4) = 0.977181
      CONSTS(5) = 0.0804374
      CONSTS(6) = 0.000989
      CONSTS(7) = 0.1
      CONSTS(8) = 0
      STATES(1) = 2109.91
      CONSTS(9) = 0.3
      STATES(2) = 3622.54
      CONSTS(10) = 0.08
      STATES(3) = 25.0404
      CONSTS(11) = 0.01
      STATES(4) = 39.8952
      CONSTS(12) = ( CONSTS(7)*CONSTS(4) - CONSTS(3))+ CONSTS(8)*142.000
      CONSTS(13) =  (CONSTS(1) - 1.00000)*CONSTS(9)+1.00000
      CONSTS(14) = CONSTS(10) - CONSTS(5)
      CONSTS(14) = CONSTS(2) - CONSTS(6)
      CONSTS(15) = CONSTS(12)
      CONSTS(16) = CONSTS(14)
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      RATES(4) = CONSTS(14)
      RATES(1) = CONSTS(15)
      RATES(2) = CONSTS(16)
      ALGBRC(4) = STATES(4) - STATES(3)
      ALGBRC(5) = STATES(1)/ALGBRC(4)
      ALGBRC(1) = (STATES(2) - 3000.00)/( CONSTS(13)*9.33330)
      ALGBRC(2) = STATES(2) - ALGBRC(1)
      ALGBRC(3) = ALGBRC(2)/STATES(3)
      ALGBRC(7) = ALGBRC(3) - ALGBRC(5)
      ALGBRC(8) =  ALGBRC(7)*CONSTS(11)
      RATES(3) = ALGBRC(8)
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(4) = STATES(4) - STATES(3)
      ALGBRC(5) = STATES(1)/ALGBRC(4)
      ALGBRC(1) = (STATES(2) - 3000.00)/( CONSTS(13)*9.33330)
      ALGBRC(2) = STATES(2) - ALGBRC(1)
      ALGBRC(3) = ALGBRC(2)/STATES(3)
      ALGBRC(7) = ALGBRC(3) - ALGBRC(5)
      ALGBRC(8) =  ALGBRC(7)*CONSTS(11)
      ALGBRC(6) = ALGBRC(1)/ALGBRC(4)
      RETURN
      END