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  2. List of mathematical series - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_series

    An infinite series of any rational function of can be reduced to a finite series of polygamma functions, by use of partial fraction decomposition, [8] as explained here. This fact can also be applied to finite series of rational functions, allowing the result to be computed in constant time even when the series contains a large number of terms.

  3. Power series - Wikipedia

    en.wikipedia.org/wiki/Power_series

    In mathematics, a power series (in one variable) is an infinite series of the form = = + + + … where represents the coefficient of the nth term and c is a constant called the center of the series. Power series are useful in mathematical analysis , where they arise as Taylor series of infinitely differentiable functions .

  4. Cauchy product - Wikipedia

    en.wikipedia.org/wiki/Cauchy_product

    The Cauchy product may apply to infinite series [1] [2] or power series. [3] [4] When people apply it to finite sequences [5] or finite series, that can be seen merely as a particular case of a product of series with a finite number of non-zero coefficients (see discrete convolution). Convergence issues are discussed in the next section.

  5. Bell series - Wikipedia

    en.wikipedia.org/wiki/Bell_series

    In mathematics, the Bell series is a formal power series used to study properties of arithmetical functions. Bell series were introduced and developed by Eric Temple Bell . Given an arithmetic function f {\displaystyle f} and a prime p {\displaystyle p} , define the formal power series f p ( x ) {\displaystyle f_{p}(x)} , called the Bell series ...

  6. Restricted power series - Wikipedia

    en.wikipedia.org/wiki/Restricted_power_series

    In algebra, the ring of restricted power series is the subring of a formal power series ring that consists of power series whose coefficients approach zero as degree goes to infinity. [1] Over a non-archimedean complete field , the ring is also called a Tate algebra .

  7. Talk:Power series - Wikipedia

    en.wikipedia.org/wiki/Talk:Power_series

    The Radius of Convergence section of the Power Series page now says "A power series will converge for some values of the variable x and may diverge for others", which completely ignores to specify WHAT THING the power series is converging towards! A power series can converge to a) a finite number, b) an analytical function, c) zero, d) infinity ...

  8. Series expansion - Wikipedia

    en.wikipedia.org/wiki/Series_expansion

    A Laurent series is a generalization of the Taylor series, allowing terms with negative exponents; it takes the form = and converges in an annulus. [6] In particular, a Laurent series can be used to examine the behavior of a complex function near a singularity by considering the series expansion on an annulus centered at the singularity.

  9. Third grade - Wikipedia

    en.wikipedia.org/wiki/Third_grade

    Grade 3 students learn how to work on projects on their own and with others. This may start as early as second grade and first grade as well. Social skills, empathy and leadership are considered by some educators [citation needed] to be as important to develop as the academic skills of reading, writing and arithmetic.

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