TO BE VERIFIED!!!!


#**  Laplace Domain Transfer Functions
#**
#**  H(s) = 1.0/Pn(s)
#**
#**  Bessel Filters  (aka Bessel–Thomson Filters)
#**
#**  P01(s) = (1.0+s)
#**  P02(s) =               (1.0+1.3614s+0.6178s^2)
#**  P03(s) = (1.0+1.3225s)*(1.0+0.9998s+0.4773s^2)
#**  P04(s) =               (1.0+1.3389s+0.4883s^2)*(1.0+0.7738s+0.3885s^2)
#**  P05(s) = (1.0+1.5015s)*(1.0+1.1408s+0.4133s^2)*(1.0+0.6219s+0.3249s^2)
#**  P06(s) =               (1.0+1.2224s+0.3891s^2)*(1.0+0.9691s+0.3509s^2)*(1.0+0.5133s+0.2759s^2)
#**  P07(s) = (1.0+1.6840s)*(1.0+1.0946s+0.3396s^2)*(1.0+0.8305s+0.3012s^2)*(1.0+0.4333s+0.2382s^2)
#**  P08(s) =               (1.0+1.1120s+0.3166s^2)*(1.0+0.9760s+0.2984s^2)*(1.0+0.7210s+0.2625s^2)*(1.0+0.3730s+0.209s^2)

***********************************************************************************************************************

  P01(s) = 1.0              s   + 1.0
  P02(s) = 0.6178           s^2 + 1.3614           s   + 1.0
  P03(s) = 0.63122925       s^3 + 1.7995355        s^2 + 2.3223            s   + 1.0
  P04(s) = 0.18970455       s^4 + 0.89800919       s^3 + 1.91284082        s^2 + 2.1127            s   + 1.0
  P05(s) = 0.201623176755   s^5 + 1.076738470785   s^4 + 2.80134396528     s^3 + 4.09435757        s^2 + 3.2642            s   + 1.0
  P06(s) = 0.037670058921   s^6 + 0.29246359505    s^5 + 1.081268521757    s^4 + 2.398563290272    s^3 + 3.32542479        s^2 + 2.7048      s   + 1.0
  P07(s) = 0.04103047015258 s^7 + 0.34438480876656 s^6 + 1.430349771200544 s^5 + 3.669798583657161 s^4 + 6.157650317410001 s^3 + 6.59375673  s^2 + 4.0424   s   + 1.0
  P08(s) = 0.005183049102   s^8 + 0.05864335781416 s^7 + 0.32254402957312  s^6 + 1.1150930091272   s^5 + 2.628442692696    s^4 + 4.295589332 s^3 + 4.725017 s^2 + 3.182 s + 1.0