Novel seed generation and quadrature-based square rooting algorithms

Abstract The square root operation is indispensable in a myriad of computational science and engineering applications. Various computational techniques have been devised to approximate its value. In particular, convergence methods employed in this regard are highly affected by the initial approximat...

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Main Authors: Amal Altamimi, Belgacem Ben Youssef
Format: Article
Language:English
Published: Nature Portfolio 2022-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-25039-y
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author Amal Altamimi
Belgacem Ben Youssef
author_facet Amal Altamimi
Belgacem Ben Youssef
author_sort Amal Altamimi
collection DOAJ
description Abstract The square root operation is indispensable in a myriad of computational science and engineering applications. Various computational techniques have been devised to approximate its value. In particular, convergence methods employed in this regard are highly affected by the initial approximation of the seed value. Research shows that the provision of an initial approximation with higher accuracy yields fewer additional iterations to calculate the square root. In this article, we propose two novel algorithms. The first one presents a seed generation technique that depends on bit manipulation and whose output is to be used as an initial value in the calculation of square roots. The second one describes a quadrature-based square rooting method that utilizes a rectangle as the plane figure for squaring. We provide error estimation of the former using the vertical parabola equation and employ a suitable lookup table, for the latter, to store needed cosine values. The seed generation approach produces a significant reduction in the number of iterations of up to 84.42% for selected convergence methods. The main advantages of our proposed square rooting algorithm lie in its high accuracy and in its requirement of just a single iteration. Our proposed algorithm also provides for lower computational latency, measured in the number of clock cycles, compared to Newton–Raphson’s and Bakhshali’s square rooting methods.
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spelling doaj.art-a8fc87d7bb29427899698d24ee6d556f2022-12-22T03:48:36ZengNature PortfolioScientific Reports2045-23222022-11-0112111910.1038/s41598-022-25039-yNovel seed generation and quadrature-based square rooting algorithmsAmal Altamimi0Belgacem Ben Youssef1Department of Computer Engineering, College of Computer & Information Sciences, King Saud UniversityDepartment of Computer Engineering, College of Computer & Information Sciences, King Saud UniversityAbstract The square root operation is indispensable in a myriad of computational science and engineering applications. Various computational techniques have been devised to approximate its value. In particular, convergence methods employed in this regard are highly affected by the initial approximation of the seed value. Research shows that the provision of an initial approximation with higher accuracy yields fewer additional iterations to calculate the square root. In this article, we propose two novel algorithms. The first one presents a seed generation technique that depends on bit manipulation and whose output is to be used as an initial value in the calculation of square roots. The second one describes a quadrature-based square rooting method that utilizes a rectangle as the plane figure for squaring. We provide error estimation of the former using the vertical parabola equation and employ a suitable lookup table, for the latter, to store needed cosine values. The seed generation approach produces a significant reduction in the number of iterations of up to 84.42% for selected convergence methods. The main advantages of our proposed square rooting algorithm lie in its high accuracy and in its requirement of just a single iteration. Our proposed algorithm also provides for lower computational latency, measured in the number of clock cycles, compared to Newton–Raphson’s and Bakhshali’s square rooting methods.https://doi.org/10.1038/s41598-022-25039-y
spellingShingle Amal Altamimi
Belgacem Ben Youssef
Novel seed generation and quadrature-based square rooting algorithms
Scientific Reports
title Novel seed generation and quadrature-based square rooting algorithms
title_full Novel seed generation and quadrature-based square rooting algorithms
title_fullStr Novel seed generation and quadrature-based square rooting algorithms
title_full_unstemmed Novel seed generation and quadrature-based square rooting algorithms
title_short Novel seed generation and quadrature-based square rooting algorithms
title_sort novel seed generation and quadrature based square rooting algorithms
url https://doi.org/10.1038/s41598-022-25039-y
work_keys_str_mv AT amalaltamimi novelseedgenerationandquadraturebasedsquarerootingalgorithms
AT belgacembenyoussef novelseedgenerationandquadraturebasedsquarerootingalgorithms