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  2. Reciprocal polynomial - Wikipedia

    en.wikipedia.org/wiki/Reciprocal_polynomial

    Reciprocal polynomial. In algebra, given a polynomial. with coefficients from an arbitrary field, its reciprocal polynomial or reflected polynomial, [1][2] denoted by p∗ or pR, [2][1] is the polynomial [3] That is, the coefficients of p∗ are the coefficients of p in reverse order. Reciprocal polynomials arise naturally in linear algebra as ...

  3. Reciprocity (electrical networks) - Wikipedia

    en.wikipedia.org/wiki/Reciprocity_(electrical...

    Reciprocity in electrical networks is a property of a circuit that relates voltages and currents at two points. The reciprocity theorem states that the current at one point in a circuit due to a voltage at a second point is the same as the current at the second point due to the same voltage at the first. The reciprocity theorem is valid for ...

  4. Multiplicative inverse - Wikipedia

    en.wikipedia.org/wiki/Multiplicative_inverse

    The graph forms a rectangular hyperbola. In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/ x or x−1, is a number which when multiplied by x yields the multiplicative identity, 1. The multiplicative inverse of a fraction a / b is b / a. For the multiplicative inverse of a real number, divide 1 by the number.

  5. Reciprocity (network science) - Wikipedia

    en.wikipedia.org/wiki/Reciprocity_(network_science)

    Category:Network theory. Category:Graph theory. v. t. e. In network science, reciprocity is a measure of the likelihood of vertices in a directed network to be mutually linked. [1] Like the clustering coefficient, scale-free degree distribution, or community structure, reciprocity is a quantitative measure used to study complex networks.

  6. Reciprocity (electromagnetism) - Wikipedia

    en.wikipedia.org/wiki/Reciprocity_(electromagnetism)

    e. In classical electromagnetism, reciprocity refers to a variety of related theorems involving the interchange of time- harmonic electric current densities (sources) and the resulting electromagnetic fields in Maxwell's equations for time-invariant linear media under certain constraints. Reciprocity is closely related to the concept of ...

  7. Reciprocal - Wikipedia

    en.wikipedia.org/wiki/Reciprocal

    In mathematics. Multiplicative inverse, in mathematics, the number 1/ x, which multiplied by x gives the product 1, also known as a reciprocal. Reciprocal polynomial, a polynomial obtained from another polynomial by reversing its coefficients. Reciprocal rule, a technique in calculus for calculating derivatives of reciprocal functions.

  8. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    The reciprocal of a fraction is another fraction with the numerator and denominator exchanged. The reciprocal of ⁠ 3 / 7 ⁠, for instance, is ⁠ 7 / 3 ⁠. The product of a fraction and its reciprocal is 1, hence the reciprocal is the multiplicative inverse of a fraction. The reciprocal of a proper fraction is improper, and the reciprocal ...

  9. Proportionality (mathematics) - Wikipedia

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

    In mathematics, two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio. The ratio is called coefficient of proportionality (or proportionality constant) and its reciprocal is known as constant of normalization (or normalizing constant).

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