Sum Connectivity Index Calculator

degree-sum reciprocal root

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About Sum Connectivity Index Calculator

A sum connectivity index calculator computing χ(G) = Σ_{(i,j)∈E} 1/√(d(i)+d(j)). Zhou-Trinajstić (2009). Uses degree sum instead of product (cf. Randić). χ and R often give complementary QSAR predictions. Better for some molecular properties. Client-side.

Sum Connectivity Index Calculator Features

  • χ(G)
  • 1/√(d+d)
  • vs Randić
  • Zhou '09
  • Common graphs

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