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  2. Function (mathematics) - Wikipedia

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

    A partial function from X to Y is thus a ordinary function that has as its domain a subset of X called the domain of definition of the function. If the domain of definition equals X, one often says that the partial function is a total function. In several areas of mathematics the term "function" refers to partial functions rather than to ...

  3. Limit of a function - Wikipedia

    en.wikipedia.org/wiki/Limit_of_a_function

    In mathematics, the limit of a function is a fundamental concept in calculus and analysis concerning the behavior of that function near a particular input which may or may not be in the domain of the function. Formal definitions, first devised in the early 19th century, are given below. Informally, a function f assigns an output f(x) to every ...

  4. Limit (mathematics) - Wikipedia

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

    On the other hand, if X is the domain of a function f(x) and if the limit as n approaches infinity of f(x n) is L for every arbitrary sequence of points {x n} in X − x 0 which converges to x 0, then the limit of the function f(x) as x approaches x 0 is equal to L. [10] One such sequence would be {x 0 + 1/n}.

  5. Arbitrariness - Wikipedia

    en.wikipedia.org/wiki/Arbitrariness

    Arbitrary comes from the Latin arbitrarius, the source of arbiter; someone who is tasked to judge some matter. [6] An arbitrary legal judgment is a decision made at the discretion of the judge, not one that is fixed by law. [7] [1] In some countries, a prohibition of arbitrariness is enshrined into the constitution.

  6. Operator (mathematics) - Wikipedia

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

    In mathematics, an operator is generally a mapping or function that acts on elements of a space to produce elements of another space (possibly and sometimes required to be the same space). There is no general definition of an operator , but the term is often used in place of function when the domain is a set of functions or other structured ...

  7. Interval (mathematics) - Wikipedia

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

    The Encyclopedia of Mathematics [7] defines interval (without a qualifier) to exclude both endpoints (i.e., open interval) and segment to include both endpoints (i.e., closed interval), while Rudin's Principles of Mathematical Analysis [8] calls sets of the form [a, b] intervals and sets of the form (a, b) segments throughout.

  8. Scheme (mathematics) - Wikipedia

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

    The function is determined by its values at the points only, so we can think of as a kind of "regular function" on the closed points, a very special type among the arbitrary functions with (). Note that the point m p {\displaystyle {\mathfrak {m}}_{p}} is the vanishing locus of the function n = p {\displaystyle n=p} , the point where the value ...

  9. Arbitrarily large - Wikipedia

    en.wikipedia.org/wiki/Arbitrarily_large

    The statement " is non-negative for arbitrarily large ." is a shorthand for: "For every real number , () is non-negative for some value of greater than .". In the common parlance, the term "arbitrarily long" is often used in the context of sequence of numbers.