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  2. Taylor series - Wikipedia

    en.wikipedia.org/wiki/Taylor_series

    Pictured is an accurate approximation of sin x around the point x = 0. The pink curve is a polynomial of degree seven: ... Second-order Taylor series approximation ...

  3. Small-angle approximation - Wikipedia

    en.wikipedia.org/wiki/Small-angle_approximation

    The Taylor series expansions of trigonometric functions sine, ... and the above approximation follows when tan X is replaced by X. ... sin (0.755) ⁡ = ⁡ (+) ...

  4. Taylor's theorem - Wikipedia

    en.wikipedia.org/wiki/Taylor's_theorem

    In calculus, Taylor's theorem gives an approximation of a -times differentiable function around a given point by a polynomial of degree , called the -th-order Taylor polynomial. For a smooth function , the Taylor polynomial is the truncation at the order k {\textstyle k} of the Taylor series of the function.

  5. Sine and cosine - Wikipedia

    en.wikipedia.org/wiki/Sine_and_cosine

    The fixed point iteration x n+1 = cos(x n) with initial value x 0 = −1 converges to the Dottie number. Zero is the only real fixed point of the sine function; in other words the only intersection of the sine function and the identity function is sin ⁡ ( 0 ) = 0 {\displaystyle \sin(0)=0} .

  6. 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.

  7. Radius of convergence - Wikipedia

    en.wikipedia.org/wiki/Radius_of_convergence

    For sin(10), one requires the first 18 terms of the series, and for sin(100) we need to evaluate the first 141 terms. So for these particular values the fastest convergence of a power series expansion is at the center, and as one moves away from the center of convergence, the rate of convergence slows down until you reach the boundary (if it ...

  8. How President-Elect Trump’s Win Could Impact Housing Prices

    www.aol.com/president-elect-trump-win-could...

    The American housing market has been a difficult one for many over the last several years, with high interest rates and soaring prices preventing many Americans from buying a new home. As such ...

  9. Sinc function - Wikipedia

    en.wikipedia.org/wiki/Sinc_function

    The sinc function as audio, at 2000 Hz (±1.5 seconds around zero) In mathematics, the historical unnormalized sinc function is defined for x ≠ 0 by ⁡ = ⁡.. Alternatively, the unnormalized sinc function is often called the sampling function, indicated as Sa(x).