Cassini's identity

Summary

Cassini's identity is an identity^[1]. It draws 2 Wikipedia views per month (identity category, ranking #20 of 17).^[2]

Key Facts

• Cassini's identity is credited with the discovery of Giovanni Domenico Cassini^[3].
• Cassini's identity is credited with the discovery of Robert Simson^[4].
• Cassini's identity's instance of is recorded as identity^[5].
• Cassini's identity's instance of is recorded as mathematical concept^[6].
• Giovanni Domenico Cassini is named after Cassini's identity^[7].
• Robert Simson is named after Cassini's identity^[8].
• Cassini's identity's defining formula is recorded as F_{n - 1}F_{n + 1} - F_n^2 = (-1)^n^[9].
• Cassini's identity's MathWorld ID is recorded as CassinisIdentity^[10].
• Cassini's identity's maintained by WikiProject is recorded as WikiProject Mathematics^[11].
• Cassini's identity's in defining formula is recorded as F_n^[12].

Body

Works and Contributions

Credited discoveries include Giovanni Domenico Cassini^[3], a selenographer^[13], 1625–1712^[14], awarded the Fellow of the Royal Society^[15], specialised in astronomy^[16] and Robert Simson^[4], a mathematician^[17], 1687–1768^[18], of Kingdom of Great Britain^[19].

Why It Matters

Cassini's identity draws 2 Wikipedia views per month (identity category, ranking #20 of 17).^[2] It is known by 4 alternative names across languages and contexts.^[20]