Results 31 to 40 of about 10,995,154 (282)

Approximation Models of Orthodromic Navigation [PDF]

open access: yesTransNav, 2011
The paper deals with two different approaches to orthodromic navigation approximation, the secant method and the tangent method. Two ways of determination of orthodromic interposition coordinates will be presented with the secant method.
Serđo Kos, David Brčic
doaj  

A Two-Step Matrix-Free Secant Method for Solving Large-Scale Systems of Nonlinear Equations

open access: yesJournal of Applied Mathematics, 2012
We propose an approach to enhance the performance of a diagonal variant of secant method for solving large-scale systems of nonlinear equations. In this approach, we consider diagonal secant method using data from two preceding steps rather than a single
M. Y. Waziri, W. J. Leong, M. Mamat
doaj   +1 more source

On Convergence of the Secant Method

open access: yesCoRR
The secant method, as an important approach for solving nonlinear equations, is introduced in nearly all numerical analysis textbooks. However, most textbooks only briefly address the Q-order of convergence of this method, with few providing rigorous mathematical proofs.
Yan Tan   +3 more
openaire   +3 more sources

Directional secant method for nonlinear equations [PDF]

open access: yes, 2005
We present a directional secant method, a secant variant of the directional Newton method, for solving a single nonlinear equation in several variables. Under suitable assumptions, we prove the convergence and the quadratic convergence speed of this new ...
Bai, Zhong-Zhi, An, Heng-Bin
core   +1 more source

A Method to Accelerate the Convergence of the Secant Algorithm [PDF]

open access: yesAdvances in Numerical Analysis, 2014
We present an acceleration technique for the Secant method. The Secant method is a root-searching algorithm for a general function f. We exploit the fact that the combination of two Secant steps leads to an improved, so-called first-order approximant of the root. The original Secant algorithm can be modified to a first-order accelerated algorithm which
openaire   +3 more sources

Analysing the efficiency of some modifications of the secant method [PDF]

open access: yes, 2012
Some modifications of the secant method for solving nonlinear equations are revisited and the local order of convergence is found in a direct symbolic computation.
Grau, A.   +8 more
core   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

A New Technique to Compute Complex Roots [PDF]

open access: yesKirkuk Journal of Science, 2010
In this paper we modified Newton – Raphson and Secant methods to Complex form, then from that we get new iterative formula to them, named Newton (Secant) real iteration formula and Newton (Secant) imaginary iteration formula, real iteration used to find
Sasan A. Muheadden
doaj   +1 more source

Sizing and Least-Change Secant Methods [PDF]

open access: yesSIAM Journal on Numerical Analysis, 1993
This paper studies a new secant update for nonlinear minimization. This update is based on a least-change principle involving the matrix trace: Consequently, all eigenvalues are taken into account in the determination of the update. In addition to motivation and analysis, computational results/comparisons are provided.
Dennis, J. E. jun., Wolkowicz, Henry
openaire   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

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