x_{m + 1} - x_{m} = \frac{z_{m + 1} - z_{m}}{\tan φ} = \frac{2, 73 \cdot 10^{- 7}}{1, 5 \cdot 10^{- 4}} = 1, 8 \cdot 10^{- 3} m = 1, 8 m m

${x_{m+1} - x_m=\frac{z_{m+1}-z_m}{\tan \varphi} = \frac{2,73 \cdot 10^{-7}}{1,5 \cdot 10^{-4}}=1,8 \cdot 10^{-3}\, \mathrm{m}=1,8\, \mathrm{mm}}$

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