Results 21 to 30 of about 148 (34)

Numerics and Fractals [PDF]

open access: yes, 2014
Local iterated function systems are an important generalisation of the standard (global) iterated function systems (IFSs). For a particular class of mappings, their fixed points are the graphs of local fractal functions and these functions themselves are
Barnsley, Michael F.   +2 more
core  

Acceleration of generalized hypergeometric functions through precise remainder asymptotics

open access: yes, 2011
We express the asymptotics of the remainders of the partial sums {s_n} of the generalized hypergeometric function q+1_F_q through an inverse power series z^n n^l \sum_k c_k/n^k, where the exponent l and the asymptotic coefficients {c_k} may be ...
A Sidi   +62 more
core   +1 more source

Computing the Gamma function using contour integrals and rational approximations [PDF]

open access: yes, 2005
Some of the best methods for computing the gamma function are based on numerical evaluation of Hankel's contour integral. For example, Temme evaluates this integral based on steepest-decent contours by the trapezoid rule.
Schmelzer, Thomas, Trefethen, Lloyd N.
core  

Bends in the plane with variable curvature [PDF]

open access: yes, 2017
Explicit formulae for planar variable curvature bends are constructed using Euler’s method of natural equations. The bend paths are expressed in terms of special functions.
Peters, Frank H., Sheehan, Robert N.
core  

An algorithm for the numerical evaluation of the associated Legendre functions that runs in time independent of degree and order

open access: yes, 2017
We describe a method for the numerical evaluation of normalized versions of the associated Legendre functions $P_\nu^{-\mu}$ and $Q_\nu^{-\mu}$ of degrees $0 \leq \nu \leq 1,000,000$ and orders $-\nu \leq \mu \leq \nu$ on the interval $(-1,1)$.
Bremer, James
core   +1 more source

Truncation Error Analysis of Approximate Operators for a Moving Particle Semi-Implicit Method

open access: yes, 2019
This paper considers several approximate operators used in a particle method based on a Voronoi diagram. Under some assumptions on a weight function, we derive truncation error estimates for our approximate gradient and Laplace operators.
Koba, Hajime, Sato, Kazuki
core  

Wavelet Deformation Analysis for Spherical Bodies [PDF]

open access: yes, 2004
In this paper we introduce a multiscale technique for the analysis of deformation phenomena of the Earth. Classically, the basis functions under use are globally defined and show polynomial character.
Freeden, Willi, Michel, Volker
core  

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