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2. Equality (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Equality_(mathematics)

   The word entered Middle English around the 14th century, borrowed from Old French equalité (modern égalité). [8] The equals sign = , now universally accepted in mathematics for equality, was first recorded by Welsh mathematician Robert Recorde in The Whetstone of Witte (1557). The original form of the symbol was much wider than the present form.

3. Glossary of mathematical symbols - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_mathematical...

   3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.

4. Equals sign - Wikipedia

   en.wikipedia.org/wiki/Equals_sign

   The equals sign (British English) or equal sign (American English), also known as the equality sign, is the mathematical symbol =, which is used to indicate equality in some well-defined sense. [1] In an equation, it is placed between two expressions that have the same value, or for which one studies the conditions under which they have the ...

5. Equation - Wikipedia

   en.wikipedia.org/wiki/Equation

   In mathematics, an equation is a mathematical formula that expresses the equality of two expressions, by connecting them with the equals sign =. [2] [3] The word equation and its cognates in other languages may have subtly different meanings; for example, in French an équation is defined as containing one or more variables, while in English ...

6. Constraint (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Constraint_(mathematics)

   The second and third lines define two constraints, the first of which is an inequality constraint and the second of which is an equality constraint. These two constraints are hard constraints , meaning that it is required that they be satisfied; they define the feasible set of candidate solutions.

7. Greater-than sign - Wikipedia

   en.wikipedia.org/wiki/Greater-than_sign

   The widely adopted form of two equal-length strokes connecting in an acute angle at the right, >, has been found in documents dated as far back as 1631. [1] In mathematical writing, the greater-than sign is typically placed between two values being compared and signifies that the first number is greater than the second number.