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 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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 OfVaradhan's Lemma, Theorems Well-attested Vieta's Formulas, Theorems Well-attested Virial Theorem, Theorems Well-attested Viviani's Theorem, Theorems 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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.