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  2. Equal Rights Amendment - Wikipedia

    en.wikipedia.org/wiki/Equal_Rights_Amendment

    Constitutionof the United States. The Equal Rights Amendment ( ERA) is a proposed amendment to the U.S. Constitution that would, if added, explicitly prohibit sex discrimination. It was written by Alice Paul and Crystal Eastman and introduced in Congress in December 1923 as a proposed amendment to the United States Constitution.

  3. Inequality (mathematics) - Wikipedia

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

    The feasible regions of linear programming are defined by a set of inequalities. In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. [1] It is used most often to compare two numbers on the number line by their size.

  4. Approximation - Wikipedia

    en.wikipedia.org/wiki/Approximation

    Approximation theory is a branch of mathematics, and a quantitative part of functional analysis. Diophantine approximation deals with approximations of real numbers by rational numbers . Approximation usually occurs when an exact form or an exact numerical number is unknown or difficult to obtain.

  5. Equal (sweetener) - Wikipedia

    en.wikipedia.org/wiki/Equal_(sweetener)

    The Equal brand logo. Equal is an American brand of artificial sweetener containing aspartame, acesulfame potassium, dextrose and maltodextrin.It is marketed as a tabletop sweetener by Merisant, a global corporation which also previously owned the well-known NutraSweet brand when it was a subsidiary of Monsanto and which has headquarters in Chicago, Illinois, Switzerland, Mexico, and Singapore.

  6. Greater-than sign - Wikipedia

    en.wikipedia.org/wiki/Greater-than_sign

    The greater-than sign is a mathematical symbol that denotes an inequality between two values. 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 ...

  7. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    The plus sign ( +) and the minus sign ( −) are mathematical symbols used to denote positive and negative functions, respectively. In addition, + represents the operation of addition, which results in a sum, while − represents subtraction, resulting in a difference. [1] Their use has been extended to many other meanings, more or less analogous.

  8. Dollar sign - Wikipedia

    en.wikipedia.org/wiki/Dollar_sign

    The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital S crossed with one or two vertical strokes ( $ or depending on typeface ), used to indicate the unit of various currencies around the world, including most currencies denominated "dollar" or "peso". The explicitly double-barred sign is called cifrão in ...

  9. Linear inequality - Wikipedia

    en.wikipedia.org/wiki/Linear_inequality

    Linear inequality. In mathematics a linear inequality is an inequality which involves a linear function. A linear inequality contains one of the symbols of inequality: [1] < less than. > greater than. ≤ less than or equal to. ≥ greater than or equal to. ≠ not equal to. A linear inequality looks exactly like a linear equation, with the ...