If L is the perimeter of a closed traverse, ΔD is the closing error in departure, the correction for the departure of a traverse side of length l, according to Bowditch rule, is
1
\({\rm{\Delta D}} \times \frac{{\rm{L}}}{{\rm{I}}}\)
2
\({\rm{\Delta D}} \times \frac{{{{\rm{I}}^2}}}{{\rm{L}}}\)
3
\({\rm{L}} \times \frac{{\rm{I}}}{{{\rm{\Delta D}}}}\)
4
\({\rm{\Delta D}} \times \frac{{\rm{I}}}{{\rm{L}}}\)