C
C There are a total of 4 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 10 entries in the constant variable array.
C
C
C VOI is time in component environment (second).
C ALGBRC(1) is F in component equations (force).
C STATES(1) is R_on in component equations (dimensionless).
C STATES(2) is A in component equations (dimensionless).
C CONSTS(1) is alpha in component equations (dimensionless).
C ALGBRC(2) is D in component equations (dimensionless).
C ALGBRC(4) is k_XB in component equations (per_second).
C CONSTS(2) is k_a in component equations (per_second).
C STATES(3) is x in component equations (um).
C CONSTS(3) is x_0 in component undefined_parameters (um).
C CONSTS(4) is epsilon in component undefined_parameters (force_per_um).
C CONSTS(5) is beta in component undefined_parameters (per_um).
C CONSTS(6) is g in component undefined_parameters (per_second).
C CONSTS(7) is f in component undefined_parameters (per_second).
C CONSTS(8) is k_off in component undefined_parameters (per_second).
C CONSTS(9) is k_on in component undefined_parameters (per_second).
C STATES(4) is L in component parameters_stelzer_et_al (um).
C CONSTS(10) is L_0 in component parameters_stelzer_et_al (um).
C ALGBRC(3) is dL_dt in component parameters_stelzer_et_al (um_per_second).
C RATES(1) is d/dt R_on in component equations (dimensionless).
C RATES(2) is d/dt A in component equations (dimensionless).
C RATES(3) is d/dt x in component equations (um).
C RATES(4) is d/dt L in component parameters_stelzer_et_al (um).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      STATES(1) = 1
      STATES(2) = 0
      CONSTS(1) = 0.1
      CONSTS(2) = 0
      STATES(3) = 1
      CONSTS(3) = 1
      CONSTS(4) = 1
      CONSTS(5) = 2
      CONSTS(6) = 1
      CONSTS(7) = 1
      CONSTS(8) = 1
      CONSTS(9) = 1
      STATES(4) = 2.12
      CONSTS(10) = 2.12
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(2) = 1.00000 - STATES(2)
      RATES(2) =  CONSTS(7)*ALGBRC(2)*STATES(1) -  CONSTS(6)*STATES(2)
      ALGBRC(3) = TERNRY(0.00100000.LT.VOI.AND.VOI.LE.0.00300000, 10.6000, 0.00000)
      RATES(3) =  - CONSTS(6)*(STATES(3) - CONSTS(3))+ALGBRC(3)
      RATES(4) = ALGBRC(3)
      ALGBRC(4) =  CONSTS(2)*STATES(2)
      RATES(1) =  - ((CONSTS(8)+ALGBRC(4)+ CONSTS(1)*CONSTS(9))/(1.00000+CONSTS(1))+ CONSTS(7)*ALGBRC(2))*STATES(1)+ (CONSTS(6) - (ALGBRC(4)+ CONSTS(1)*CONSTS(9))/(1.00000+CONSTS(1)))*STATES(2)+ (ALGBRC(4)+( CONSTS(1)*CONSTS(9))/(1.00000+CONSTS(1)))*CONSTS(5)*(STATES(4) - CONSTS(10))
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(2) = 1.00000 - STATES(2)
      ALGBRC(3) = TERNRY(0.00100000.LT.VOI.AND.VOI.LE.0.00300000, 10.6000, 0.00000)
      ALGBRC(4) =  CONSTS(2)*STATES(2)
      ALGBRC(1) =  STATES(2)*CONSTS(4)*STATES(3)
      RETURN
      END
      REAL FUNCTION TERNRY(TEST, VALA, VALB)
      LOGICAL TEST
      REAL VALA, VALB
      IF (TEST) THEN
        TERNRY = VALA
      ELSE
        TERNRY = VALB
      ENDIF
      RETURN
      END