C
C There are a total of 1 entries in the algebraic variable array.
C There are a total of 1 entries in each of the rate and state variable arrays.
C There are a total of 11 entries in the constant variable array.
C
C
C VOI is time in component environment (millisecond).
C CONSTS(1) is C in component membrane (microF_per_mm2).
C CONSTS(2) is T in component membrane (per_millisecond).
C STATES(1) is Y in component membrane (dimensionless).
C CONSTS(8) is Y_infinity_Vm in component membrane (dimensionless).
C CONSTS(3) is Vm in component membrane (millivolt).
C ALGBRC(1) is I_ion in component membrane (microA_per_mm2).
C CONSTS(9) is i1_Vm in component membrane (microA_per_mm2).
C CONSTS(11) is i0_Vm in component membrane (microA_per_mm2).
C CONSTS(10) is f_Vm in component membrane (microA_per_mm2).
C CONSTS(4) is af in component membrane (dimensionless).
C CONSTS(5) is bf in component membrane (dimensionless).
C CONSTS(6) is cf in component membrane (dimensionless).
C CONSTS(7) is df in component membrane (dimensionless).
C RATES(1) is d/dt Y in component membrane (dimensionless).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      CONSTS(1) = 0.01
      CONSTS(2) = 50.0
      STATES(1) = 0.07
      CONSTS(3) = -78.6
      CONSTS(4) = 0.00003837854
      CONSTS(5) = 0.00584649
      CONSTS(6) = 0.2531834
      CONSTS(7) = 2.356256
      CONSTS(8) = TERNRY(CONSTS(3).LT.-80.0000, 0.00000, TERNRY(CONSTS(3).GT.-60.0000, 1.00000, (CONSTS(3)+80.0000)/20.0000)
      CONSTS(9) = TERNRY(CONSTS(3).LT.-70.0000, 0.0500000+ 0.00500000*(CONSTS(3)+70.0000), TERNRY(CONSTS(3).GT.0.00000, 0.0600000+ 0.00425000*CONSTS(3), 0.0500000+( 0.0100000*(CONSTS(3)+70.0000))/70.0000)
      CONSTS(10) = TERNRY(CONSTS(3).LT.-74.3000, 0.0784000+ 0.0200000*(CONSTS(3)+74.3000), TERNRY(CONSTS(3).GT.-27.8000, -0.988400+ 0.0171000*(CONSTS(3)+27.8000),  CONSTS(4)*CONSTS(3) ** 3.00000+ CONSTS(5)*CONSTS(3) ** 2.00000+ CONSTS(6)*CONSTS(3)+CONSTS(7))
      CONSTS(11) = CONSTS(9)+CONSTS(10)
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      RATES(1) =  (1.00000/CONSTS(2))*(CONSTS(8) - STATES(1))
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) =  - STATES(1)*CONSTS(9) -  (1.00000 - STATES(1))*CONSTS(11)
      RETURN
      END
      REAL FUNCTION TERNRY(TEST, VALA, VALB)
      LOGICAL TEST
      REAL VALA, VALB
      IF (TEST) THEN
        TERNRY = VALA
      ELSE
        TERNRY = VALB
      ENDIF
      RETURN
      END