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  2. Taylor series - Wikipedia

    en.wikipedia.org/wiki/Taylor_series

    The partial sum formed by the first n + 1 terms of a Taylor series is a polynomial of degree n that is called the n th Taylor polynomial of the function. Taylor polynomials are approximations of a function, which become generally more accurate as n increases.

  3. Error function - Wikipedia

    en.wikipedia.org/wiki/Error_function

    For any real x, Newton's method can be used to compute erfi −1 x, and for −1 ≤ x ≤ 1, the following Maclaurin series converges: ⁡ = = + +, where c k is defined as above. Asymptotic expansion

  4. Euler–Maclaurin formula - Wikipedia

    en.wikipedia.org/wiki/Euler–Maclaurin_formula

    The remainder term arises because the integral is usually not exactly equal to the sum. The formula may be derived by applying repeated integration by parts to successive intervals [r, r + 1] for r = m, m + 1, …, n − 1. The boundary terms in these integrations lead to the main terms of the formula, and the leftover integrals form the ...

  5. Binomial series - Wikipedia

    en.wikipedia.org/wiki/Binomial_series

    If |x| > 1, the series diverges except when α is a non-negative integer, in which case the series is a finite sum. In particular, if α is not a non-negative integer, the situation at the boundary of the disk of convergence, | x | = 1, is summarized as follows: If Re(α) > 0, the series converges absolutely. If −1 < Re(α) ≤ 0, the series ...

  6. Difference engine - Wikipedia

    en.wikipedia.org/wiki/Difference_engine

    That tab trips the carry lever in the back when "9" passes to "0" in the front during the add steps (Step 1 and Step 3). The notion of a mechanical calculator for mathematical functions can be traced back to the Antikythera mechanism of the 2nd century BC, while early modern examples are attributed to Pascal and Leibniz in the 17th century.

  7. 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.

  8. Machin-like formula - Wikipedia

    en.wikipedia.org/wiki/Machin-like_formula

    For the first term in the Taylor series, all digits must be processed. In the last term of the Taylor series, however, there's only one digit remaining to be processed. In all of the intervening terms, the number of digits to be processed can be approximated by linear interpolation. Thus the total is given by:

  9. 1 + 2 + 3 + 4 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    The first four partial sums of the series 1 + 2 ... the step 4c = 0 + 4 ... of f decay quickly enough for the remainder terms in the Euler–Maclaurin formula ...