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The 24 pages that link to Adrien-Marie Legendre, each with the reason it gives.

• Least squaresRelated: Legendre gave the first published account of the method and applied it to geodesy.

• Pierre-Simon LaplaceRelated: Legendre’s methods for least squares and astronomy intersected with Laplace’s research.

• Normal distributionRelated: Least-squares fitting became closely connected to normal-error assumptions.

• Joseph-Louis LagrangeRelated: Legendre shared Lagrange’s Parisian mathematical world and developed related methods.

• Gamma functionRelated: Legendre introduced the Γ notation and developed the function’s theory.

• Niels Henrik AbelRelated: Abel extended the theory of elliptic integrals that Legendre had studied extensively.

• Quadratic reciprocityRelated: Legendre stated the law and developed a proof before Gauss.

• Disquisitiones ArithmeticaeRelated: Legendre studied quadratic residues and proposed a version of the reciprocity law before Gauss’s proof.

• Legendre symbolRelated: He introduced the notation and developed the reciprocity law now bearing his name.

• Elliptic functionRelated: His classification of elliptic integrals helped set the problem that elliptic functions invert.

• Lagrange's four-square theoremRelated: His later treatment helped establish the theorem's place in classical number theory.

• Ordinary least squaresRelated: Legendre gave the method an explicit mathematical formulation and name.

• Euler's criterionRelated: His notation for quadratic residues is the symbol appearing in the theorem.

• Sophie GermainRelated: He advised Germain and helped her engage with the Paris Academy’s elasticity competition.

• Euler's polyhedron formulaRelated: Legendre supplied an early proof of the formula for convex polyhedra.

• Elliptic integralRelated: His classification and notation remain central to the standard forms.

• Legendre's conjectureRelated: The conjecture is named after Legendre, who stated it in work on prime numbers.

• Sophie Germain primeRelated: Legendre helped publish Germain's work on Fermat's Last Theorem.

• Legendre's formulaRelated: The factorial valuation formula is named after him.

• Jacobi's four-square theoremRelated: His work on sums of squares helped shape the surrounding eighteenth-century problem.

• Legendre's three-square theoremRelated: Legendre gave an early proof of the three-square criterion bearing his name.

• Sophie Germain's identityRelated: Legendre developed results on Fermat’s equation connected with Germain’s number-theoretic work.

• Sophie Germain's theoremRelated: Legendre helped develop and present results related to Germain’s theorem.

• Proof that π is irrationalRelated: Legendre presented an irrationality proof for π and conjectured its transcendence.