Second Zagreb Coindex Calculator

complement degree product

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About Second Zagreb Coindex Calculator

A second Zagreb coindex calculator computing M̄₂(G) = Σ_{i≁j} d(i)·d(j). Došlić (2008). Product of degrees over non-edges. M̄₂ = 2m² - ½M₁ - M₂. Complement of second Zagreb. Measures connectivity potential. Client-side.

Second Zagreb Coindex Calculator Features

  • M̄₂(G)
  • Non-edge Π
  • M̄₂+M₂
  • Complement
  • Common graphs

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