Zagreb Index Calculator

degree-squared sums

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About Zagreb Index Calculator

A Zagreb index calculator computing M₁(G) = Σ d(v)² (first Zagreb) and M₂(G) = Σ_{(i,j)∈E} d(i)·d(j) (second Zagreb). Gutman-Trinajstić (1972). Oldest degree-based indices! M₁ correlates with total π-electron energy. Client-side.

Zagreb Index Calculator Features

  • M₁(G)
  • M₂(G)
  • Σd²
  • ΣdᵢdⱼΣ
  • Chemistry

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