412569.fig.004
Figure 4: The solution 𝜓 ( 𝑣 ) = l n ( ( d n ( 𝑣 , 𝑘 ) + c n ( 𝑣 , 𝑘 ) ) / ( d n ( 𝑣 , 𝑘 ) c n ( 𝑣 , 𝑘 ) ) ) for the Poisson Boltzmann equation. The parameters are 𝑘 2 = 0 . 7 5 and 𝐾 = 1 . 6 8 6 .