FvCB

\begin{align*}
  \text{abs} &= \alpha \cdot \mathrm{PPFD} \\ 
  C_{i, safe} &= \max(C_i, 1) \\ 
  J &= \frac{\text{abs} + J_{max} - \sqrt[2]{\max({\text{abs} + J_{max}}^{2} - 4 \cdot \theta \cdot \text{abs} \cdot J_{max}, 0)}}{2 \cdot \theta} \\ 
  W_c &= \frac{V_{cmax} \cdot C_{i, safe}}{C_{i, safe} + K_c \cdot (1 + \frac{O}{K_o})} \\ 
  A_c &= (1 - \frac{\Gamma^*}{C_{i, safe}}) \cdot W_c - R_d \\ 
  A_j &= \frac{J \cdot (C_{i, safe} - \Gamma^*)}{4 \cdot C_{i, safe} + 8 \cdot \Gamma^*} - R_d \\ 
  A_p &= 3 \cdot T_{PU} - R_d \\ 
  A_n &= \min(A_c, A_j, A_p)
\end{align*}