κ g a u s s = 1 M ⋅ 1 N {\displaystyle \kappa _{gauss}={\sqrt {{\frac {1}{M}}\cdot {\frac {1}{N}}}}} κ = 1 2 π ∫ 0 2 π κ n ( P j ) ∂ ϕ {\displaystyle \kappa ={\frac {1}{2\pi }}\int _{0}^{2\pi }\kappa _{n}(P_{j})\;\partial \phi }
