This article lists mathematical identities, that is, identically true relations holding in mathematics.
Binet-cauchy identity Binomial inverse theorem Binomial identity Brahmagupta–Fibonacci two-square identity Candido's identity Cassini and Catalan identities Degen's eight-square identity Difference of two squares Euler's four-square identity Euler's identity Fibonacci's identity see Brahmagupta–Fibonacci identity or Cassini and Catalan identities Heine's identity Hermite's identity Lagrange's identity Lagrange's trigonometric identities List of logarithmic identities MacWilliams identity Matrix determinant lemma Newton's identity Parseval's identity Pfister's sixteen-square identity Sherman–Morrison formula Sophie Germain identity Sun's curious identity Sylvester's determinant identity Vandermonde's identity Woodbury matrix identity
Identities for classes of functions Exterior calculus identities Fibonacci identities: Combinatorial Fibonacci identities and Other Fibonacci identities Hypergeometric function identities List of integrals of logarithmic functions List of topics related to π List of trigonometric identities Inverse trigonometric functions Logarithmic identities Summation identities Vector calculus identities
See also List of inequalities List of set identities and relations – Equalities for combinations of sets
External links A Collection of Algebraic Identities Matrix Identities