C
C There are a total of 9 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 20 entries in the constant variable array.
C
C
C VOI is time in component environment (millisecond).
C CONSTS(1) is tau_c in component nucleotides (second).
C CONSTS(2) is eta in component nucleotides (dimensionless).
C CONSTS(3) is v in component nucleotides (dimensionless).
C CONSTS(4) is k in component nucleotides (dimensionless).
C ALGBRC(1) is phi in component nucleotides (dimensionless).
C STATES(1) is ADP in component nucleotides (dimensionless).
C STATES(2) is ATP in component nucleotides (dimensionless).
C CONSTS(5) is C_m in component membrane (femtofarad).
C ALGBRC(4) is I_Ca in component Ca_current (femtoampere).
C ALGBRC(5) is I_K in component K_current (femtoampere).
C ALGBRC(8) is I_KCa in component Ca_activated_K_current (femtoampere).
C ALGBRC(9) is I_KATP in component ATP_sensitive_K_current (femtoampere).
C STATES(3) is V in component membrane (millivolt).
C CONSTS(6) is g_Ca_ in component Ca_current (picosiemens).
C CONSTS(7) is V_Ca in component Ca_current (millivolt).
C CONSTS(8) is v_m in component Ca_current (millivolt).
C CONSTS(9) is s_m in component Ca_current (millivolt).
C ALGBRC(2) is m_infinity in component Ca_current (dimensionless).
C CONSTS(10) is g_K_ in component K_current (picosiemens).
C CONSTS(11) is V_K in component K_current (millivolt).
C STATES(4) is n in component K_channel_activation (dimensionless).
C CONSTS(12) is g_KCa_ in component Ca_activated_K_current (picosiemens).
C CONSTS(13) is k_D in component Ca_activated_K_current (micromolar).
C STATES(5) is c in component cytosolic_Ca (micromolar).
C ALGBRC(7) is omega in component Ca_activated_K_current (dimensionless).
C CONSTS(14) is g_KATP_ in component ATP_sensitive_K_current (picosiemens).
C CONSTS(15) is tau_n in component K_channel_activation (millisecond).
C CONSTS(16) is v_n in component K_channel_activation (millivolt).
C CONSTS(17) is s_n in component K_channel_activation (millivolt).
C ALGBRC(3) is n_infinity in component K_channel_activation (dimensionless).
C ALGBRC(6) is J_mem in component Ca_influx (micromolar_per_ms).
C CONSTS(18) is f in component Ca_influx (dimensionless).
C CONSTS(19) is alpha in component Ca_influx (micromolar_per_fA_ms).
C CONSTS(20) is k_c in component Ca_influx (per_millisecond).
C RATES(2) is d/dt ATP in component nucleotides (dimensionless).
C RATES(1) is d/dt ADP in component nucleotides (dimensionless).
C RATES(3) is d/dt V in component membrane (millivolt).
C RATES(4) is d/dt n in component K_channel_activation (dimensionless).
C RATES(5) is d/dt c in component cytosolic_Ca (micromolar).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      CONSTS(1) = 1200
      CONSTS(2) = 185
      CONSTS(3) = 10
      CONSTS(4) = 20
      STATES(1) = 0.085817
      STATES(2) = 2.1047
      CONSTS(5) = 5300
      STATES(3) = -67.018
      CONSTS(6) = 1200
      CONSTS(7) = 25
      CONSTS(8) = -20
      CONSTS(9) = 12
      CONSTS(10) = 3000
      CONSTS(11) = -75
      STATES(4) = 0.00011
      CONSTS(12) = 300
      CONSTS(13) = 0.3
      STATES(5) = 0.15666
      CONSTS(14) = 350
      CONSTS(15) = 16
      CONSTS(16) = -16
      CONSTS(17) = 5.6
      CONSTS(18) = 0.001
      CONSTS(19) = 0.00000225
      CONSTS(20) = 0.1
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) =  STATES(2)*1.00000+ CONSTS(4)*STATES(1) ** 2.00000
      RATES(2) = (CONSTS(3) - ALGBRC(1))/( 1000.00*CONSTS(1))
      RATES(1) = (ALGBRC(1) -  CONSTS(2)*STATES(1))/( 1000.00*CONSTS(1))
      ALGBRC(3) = 1.00000/(1.00000+EXP((CONSTS(16) - STATES(3))/CONSTS(17)))
      RATES(4) = (ALGBRC(3) - STATES(4))/CONSTS(15)
      ALGBRC(2) = 1.00000/(1.00000+EXP((CONSTS(8) - STATES(3))/CONSTS(9)))
      ALGBRC(4) =  CONSTS(6)*ALGBRC(2)*(STATES(3) - CONSTS(7))
      ALGBRC(6) =  - CONSTS(18)*( CONSTS(19)*ALGBRC(4)+ CONSTS(20)*STATES(5))
      RATES(5) = ALGBRC(6)
      ALGBRC(5) =  CONSTS(10)*STATES(4)*(STATES(3) - CONSTS(11))
      ALGBRC(7) = 1.00000/(1.00000+CONSTS(13)/STATES(5))
      ALGBRC(8) =  CONSTS(12)*ALGBRC(7)*(STATES(3) - CONSTS(11))
      ALGBRC(9) = ( (STATES(3) - CONSTS(11))*CONSTS(14))/STATES(2)
      RATES(3) = - (ALGBRC(4)+ALGBRC(5)+ALGBRC(8)+ALGBRC(9))/CONSTS(5)
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) =  STATES(2)*1.00000+ CONSTS(4)*STATES(1) ** 2.00000
      ALGBRC(3) = 1.00000/(1.00000+EXP((CONSTS(16) - STATES(3))/CONSTS(17)))
      ALGBRC(2) = 1.00000/(1.00000+EXP((CONSTS(8) - STATES(3))/CONSTS(9)))
      ALGBRC(4) =  CONSTS(6)*ALGBRC(2)*(STATES(3) - CONSTS(7))
      ALGBRC(6) =  - CONSTS(18)*( CONSTS(19)*ALGBRC(4)+ CONSTS(20)*STATES(5))
      ALGBRC(5) =  CONSTS(10)*STATES(4)*(STATES(3) - CONSTS(11))
      ALGBRC(7) = 1.00000/(1.00000+CONSTS(13)/STATES(5))
      ALGBRC(8) =  CONSTS(12)*ALGBRC(7)*(STATES(3) - CONSTS(11))
      ALGBRC(9) = ( (STATES(3) - CONSTS(11))*CONSTS(14))/STATES(2)
      RETURN
      END