in the reference paper provided:

" Analytical solution of Poisson? Boltzmann equation for interacting plates of arbitrary potentials and same sign",

https://www.researchgate.net/publication/38014632_Analytical_solution_of_PoissonBoltzmann_equation_for_interacting_plates_of_arbitrary_potentials_and_same_sign

at page 184:

(a) Calculation of interplate distance H and electrostatic pressure Fe at that H:

ii) it says that S1*S1 = cosh (Y1) + phi

but the example value is S1 =12.012 for Y1=5, phi = -4.135

This is wrong. S1 equal 12.012 if and only if S1 * S1 = 2cosh (Y1) + phi.

(ii) should have been eqn (8),(9) in the paper. There is a missing “2” in (ii)

However, values in “stage1_sample_input_parameterizations.csv” and “stage1_test_input_parameterizations.csv” follows the wrong formla in (ii)

note : the bug does not affect results since the equations are not used in stage.1