Results 31 to 40 of about 67,589 (200)

Numerical Integration in Arbitrary-Precision Ball Arithmetic [PDF]

open access: yes, 2018
We present an implementation of arbitrary-precision numerical integration with rigorous error bounds in the Arb library. Rapid convergence is ensured for piecewise complex analytic integrals by use of the Petras algorithm, which combines adaptive bisection with adaptive Gaussian quadrature where error bounds are determined via complex magnitudes ...
openaire   +3 more sources

Semantics, Specification Logic, and Hoare Logic of Exact Real Computation [PDF]

open access: yesLogical Methods in Computer Science
We propose a simple imperative programming language, ERC, that features arbitrary real numbers as primitive data type, exactly. Equipped with a denotational semantics, ERC provides a formal programming language-theoretic foundation to the algorithmic ...
Sewon Park   +9 more
doaj   +1 more source

Computing Puiseux series : a fast divide and conquer algorithm [PDF]

open access: yes, 2017
Let $F\in \mathbb{K}[X, Y ]$ be a polynomial of total degree $D$ defined over a perfect field $\mathbb{K}$ of characteristic zero or greater than $D$. Assuming $F$ separable with respect to $Y$ , we provide an algorithm that computes the singular parts ...
Poteaux, Adrien, Weimann, Martin
core   +5 more sources

Improving MATLAB's isprime performance without arbitrary-precision arithmetic

open access: yesCoRR, 2021
MATLAB is a numerical computing platform used by scientists, engineers, mathematicians, and students which contains many mathematical functions, including isprime. MATLAB's isprime function determines which elements of an input array are prime. This research details modular arithmetic techniques, the Miller-Rabin primality test, vectorized operations ...
openaire   +2 more sources

Certified lattice reduction [PDF]

open access: yes, 2019
Quadratic form reduction and lattice reduction are fundamental tools in computational number theory and in computer science, especially in cryptography. The celebrated Lenstra-Lenstra-Lov\'asz reduction algorithm (so-called LLL) has been improved in many
Espitau, Thomas, Joux, Antoine
core   +5 more sources

GPredicates: GPU Implementation of Robust and Adaptive Floating-Point Predicates for Computational Geometry

open access: yesIEEE Access, 2019
Geometric algorithms rely on predicates, among them, the 2D and 3D orientation and incircle tests are important ones. Shewchuk's adaptive floating-point predicate is a well-known C implementation, which is embedded in many computational geometry ...
Meng Qi, Ke Yan, Yuanjie Zheng
doaj   +1 more source

Electric potential and field calculation of charged BEM triangles and rectangles by Gaussian cubature [PDF]

open access: yes, 2016
It is a widely held view that analytical integration is more accurate than the numerical one. In some special cases, however, numerical integration can be more advantageous than analytical integration.
Glück, Ferenc, Hilk, Daniel
core   +3 more sources

Software Support for Arbitrary Precision Arithmetic in Programming Languages

open access: yesIndian Journal of Cryptography and Network Security, 2023
Arbitrary precision arithmetic, also known as bignum arithmetic, is a computational technique that allows programmers to perform arithmetic operations on numbers with significantly higher precision and magnitude than what is typically supported by the built-in numerical data types in programming languages.
openaire   +2 more sources

Cartographic Algorithms: Problems of Implementation and Evaluation and the Impact of Digitising Errors [PDF]

open access: yes, 1991
Cartographic generalisation remains one of the outstanding challenges in digital cartography and Geographical Information Systems (GIS). It is generally assumed that computerisation will lead to the removal of spurious variability introduced by the ...
Visvalingam, M.   +2 more
core   +1 more source

Information-Bottleneck Decoding of High-Rate Irregular LDPC Codes for Optical Communication Using Message Alignment

open access: yesApplied Sciences, 2018
In high-throughput applications, low-complexity and low-latency channel decoders are inevitable. Hence, for low-density parity-check (LDPC) codes, message passing decoding has to be implemented with coarse quantization—that is, the exchanged ...
Maximilian Stark   +2 more
doaj   +1 more source

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