deletions | additions       diff --git a/Box.tex b/Box.tex  index 22961a6..5a0f208 100644  --- a/Box.tex  +++ b/Box.tex 
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\eqbox{   $N $\eqbox{   N  = R \times f_p \times n_e \times f_l \times f_i \times f_c \times L$} L}$