This function optimizes the box size according to the given value of
\[N_{b,u}=\frac{N_b}{N_u}\]
with the number of bound \(N_b\) and unbound instances \(N_u\)
during a long unbiased simulation. This is done by minimizing the
difference
\[\Delta=|\frac{N_b}{N_u}-\frac{p_b}{1-p_b}|\]
with binding probability \(p_b\) from the MC simulation using the
Powell algorithm.
| Parameters: | 
- T : float
 
Simulation temperature in Kelvin 
 
- V : float
 
Simulation box volumen in \(\text{nm}^3\) 
 
- dG : float
 
Simulation \(\Delta G\) in \(\frac{\text{kJ}}{\text{mol}}\) 
 
- N_bu : float
 
Fraction from simulation of bound \(N_b\) to unbound instances \(N_u\) 
 
- system : touple, optional
 
Considered system (num_mol1, num_mol2) - Typically 1:1 system 
 
- binding : touple, optional
 
System to optimize the binding probability for 
 
- guess : integer, optional
 
Initial guess for minimization 
 
 
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| Returns: | 
- size : integer
 
Number of cells. 
 
 
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