Lagrange's identity (disambiguation)

Lagrange's identity may refer to:

Lagrange's identity, an algebraic identity
Lagrange's identity (boundary value problem), an identity in calculus
Lagrange's trigonometric identities, two trigonometric identities
Lagrange's four-square theorem, a theorem from number theory
Lagrange polynomial for theorems relating to numerical interpolation
Euler–Lagrange equation of variational mechanics

This disambiguation page lists mathematics articles associated with the same title.
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