Home›Mathematical Physics, Biology and Game Theory›Object Kind›EquationConceptEquationAlgebraReference and ClassificationDevelopingA mathematical statement that two expressions are equal, joined by an equals sign. Solving an equation means finding which values of its unknowns make the statement true, and the equals sign itself was invented only in 1557, well after equations had been written and solved for centuries using prose and other notations. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/FactsEquationConnectionsSourcesTake a Related QuizComments (0)Reader Challenges (0)FactsOrigin YearWell-attested1557 11557 marks Robert Recorde's invention of the equals sign in The Whetstone of Witte, the origin of the modern written form of an equation; equations as mathematical statements, solved in prose and other notations, are centuries older, as the description notes.EquationFilter Results26 entriesBranchAllDifferential Equations (1)Game Theory (1)Mathematical Biology (3)Mathematical Physics (7)Origin EraAll1830 (1)1872 (1)1888 (1)1903 (1)1910 (1)1935 (2)1937 (1)1939 (1)1952 (1)1957 (1)1981 (1)1996 (1)Introduced ByAllAndrey Kolmogorov (1)Augustin-Louis Cauchy (1)Leonhard Euler (1)Ludwig Boltzmann (1)Named AfterAllAugustin-Louis Cauchy (1)Leonhard Euler (1)Show ResultsBrowseCompareSelect all 26Antoine EquationEquationAvrami EquationEquationBarometric FormulaEquationBoltzmann's Entropy FormulaEquationCauchy's EquationEquationCompetitive Lotka-Volterra EquationsEquationContinuity EquationEquationErgun equationEquationEuler's Equations (Rigid Body Dynamics)EquationFisher equationEquationGeneralized Lotka-Volterra EquationEquationHammett equationEquationJarzynski EqualityEquationKirchhoff's Diffraction FormulaEquationKoide FormulaEquationKubo FormulaEquationLondon equationsEquationLotka-Volterra EquationsEquationPrice equationEquationReplicator EquationEquationSemi-Empirical Mass FormulaEquationSlutsky equationEquationSteinhart-Hart EquationEquationTsiolkovsky Rocket EquationEquationVan Deemter EquationEquationVelocity-addition formulaEquationConnectionsAssociated WithPolynomial, Concepts Well-attested In BranchAlgebra, Branches of Mathematics Well-attested Source Equation (Wikipedia)tier 2Kind Of Object OfAbel's Summation Formula, Mathematical Objects Well-attested Antoine Equation, Mathematical Objects Well-attested Avrami Equation, Mathematical Objects Well-attested Barometric Formula, Mathematical Objects Well-attested Bellard's Formula, Mathematical Objects Well-attested Bochner's Formula, Mathematical Objects Well-attested Boltzmann's Entropy Formula, Mathematical Objects Well-attested Cauchy's Equation, Mathematical Objects Well-attested Cavalieri's Quadrature Formula, Mathematical Objects Well-attested Competitive Lotka-Volterra Equations, Mathematical Objects Well-attested Continuity Equation, Mathematical Objects Well-attested Duffing Equation, Mathematical Objects Well-attested Ergun equation, Mathematical Objects Well-attested Euler-Maclaurin Formula, Mathematical Objects Well-attested Euler's Continued Fraction Formula, Mathematical Objects Well-attested Euler's Equations (Rigid Body Dynamics), Mathematical Objects Well-attested Faà di Bruno's Formula, Mathematical Objects Well-attested Faulhaber's Formula, Mathematical Objects Well-attested Fisher equation, Mathematical Objects Well-attested Gauss Sum, Mathematical Objects Well-attested Generalized Lotka-Volterra Equation, Mathematical Objects Well-attested Hammett equation, Mathematical Objects Well-attested Hook Length Formula, Mathematical Objects Well-attested Jacobi Triple Product, Mathematical Objects Well-attested Jacobi's formula, Mathematical Objects Well-attested Jarzynski Equality, Mathematical Objects Well-attested Kelly Criterion, Mathematical Objects Well-attested Kirchhoff's Diffraction Formula, Mathematical Objects Well-attested Koide Formula, Mathematical Objects Well-attested Kubo Formula, Mathematical Objects Well-attested Legendre's Formula, Mathematical Objects Well-attested London equations, Mathematical Objects Well-attested Lotka-Volterra Equations, Mathematical Objects Well-attested Perron's Formula, Mathematical Objects Well-attested Price equation, Mathematical Objects Well-attested Quotient Rule, Mathematical Objects Well-attested Replicator Equation, Mathematical Objects Well-attested Rodrigues' formula, Mathematical Objects Well-attested Rodrigues' Rotation Formula, Mathematical Objects Well-attested Rule of Succession, Mathematical Objects Well-attested Semi-Empirical Mass Formula, Mathematical Objects Well-attested Sextic Equation, Mathematical Objects Well-attested Sherman-Morrison Formula, Mathematical Objects Well-attested Shoelace Formula, Mathematical Objects Well-attested Slutsky equation, Mathematical Objects Well-attested Steinhart-Hart Equation, Mathematical Objects Well-attested System of Equations, Mathematical Objects Well-attested System of linear equations, Mathematical Objects Well-attested Tanaka's Formula, Mathematical Objects Well-attested Tsiolkovsky Rocket Equation, Mathematical Objects Well-attested Showing 1 to 50 of 57 in Kind Of Object Of, page 1 of 2.12Next →Statement Form OfHeron's Formula, Theorems Well-attested Hilbert's Theorem 90, Theorems Well-attested Identity Theorem (Complex Analysis), Theorems Well-attested Immerman-Szelepcsenyi Theorem, Theorems Well-attested Increment Theorem, Theorems Well-attested Inscribed Angle Theorem, Theorems Well-attested Intercept Theorem, Theorems Well-attested Intersecting Chords Theorem, Theorems Well-attested Intersecting Secants Theorem, Theorems Well-attested Ito's Lemma, Theorems Well-attested Jacobi's Four-Square Theorem, Theorems Well-attested Jacobson Density Theorem, Theorems Well-attested Kelvin's Circulation Theorem, Theorems Well-attested Kirchhoff's Theorem (Matrix-Tree Theorem), Theorems Well-attested Koenig's Theorem (Graph Theory), Theorems Well-attested Kramers-Kronig Relations, Theorems Well-attested Kummer's Theorem, Theorems Well-attested Kunneth Theorem, Theorems Well-attested Kutta-Joukowski Theorem, Theorems Well-attested Lami's Theorem, Theorems Well-attested Landau Prime Ideal Theorem, Theorems Well-attested Lax-Milgram Theorem, Theorems Well-attested Lefschetz Fixed-Point Theorem, Theorems Well-attested Leray-Schauder Fixed-Point Theorem, Theorems Well-attested Liouville's Theorem (Hamiltonian Mechanics), Theorems Well-attested Lochs' Theorem, Theorems Well-attested Loeb's Theorem, Theorems Well-attested Los's Theorem, Theorems Well-attested Lucas' Theorem, Theorems Well-attested MacMahon's Master Theorem, Theorems Well-attested Mean Value Theorem, Theorems Well-attested Menelaus's Theorem, Theorems Well-attested Menger's Theorem, Theorems Well-attested Mertens' Theorems, Theorems Well-attested Midy's Theorem, Theorems Well-attested Mihailescu's Theorem, Theorems Well-attested Mirsky's Theorem, Theorems Well-attested Motzkin-Taussky Theorem, Theorems Well-attested Multinomial Theorem, Theorems Well-attested Multiplication Theorem, Theorems Well-attested Myhill-Nerode Theorem, Theorems Well-attested Newton's Identities, Theorems Well-attested Nicomachus's Theorem, Theorems Well-attested Noether Normalization Lemma, Theorems Well-attested Onsager Reciprocal Relations, Theorems Well-attested Optical Theorem, Theorems Well-attested Optional Stopping Theorem, Theorems Well-attested Parseval's Theorem, Theorems Well-attested PCP Theorem, Theorems Well-attested Peano Existence Theorem, Theorems Well-attested Showing 101 to 150 of 212 in Statement Form Of, page 3 of 5.← Previous12345Next →Sources1. Equation (Wikipedia)tier 2Wikimedia FoundationLead sectionQuote, Lead sectionThe "=" symbol, which appears in every equation, was invented in 1557 by Robert Recorde, who considered that nothing could be more equal than parallel straight lines with the same length.View the SourceTake a Related QuizOrigins of Mathematical ConceptsCovers this kind of entry.Comments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.