Search Results - "Numerical differentiation"

Deriving Deflection of the Vertical and Gravity Anomaly from SWOT/KaRIn Data Using an Optimized Discretization Method.

Authors: Guo, Hengyang Wan, Xiaoyun Wu, Xing

Source: Remote Sensing. May2026, Vol. 18 Issue 9, p1360. 21p.

Subjects: Discretization methods, Numerical differentiation, Gravitational fields, Ocean surface topography, Gravity anomalies, Geodetic techniques

Derivation-Based Calibration of IMUs Using Savitzky–Golay Filters.

Authors: Vieira, Diogo Oliveira, Miguel Arrais, Rafael

Source: Sensors (14248220). Mar2026, Vol. 26 Issue 6, p1788. 16p.

Directional Quaternion Step Differentiation and a Bicomplex Double-Step Calculus for Cancellation-Free First and Second Derivatives.

Authors: Kim, Ji Eun¹ (AUTHOR)

Source: Mathematics (2227-7390). Feb2026, Vol. 14 Issue 4, p728. 18p.

Fourth-Order Numerical Derivation as Being an Inverse Force Problem of Beam Equations.

Authors: Liu, Chein-Shan Chang, Chih-Wen

Source: Eng (2673-4117). Nov2025, Vol. 6 Issue 11, p324. 18p.

Embedding numerical methods and MATLAB programming in a fluid mechanics course for undergraduates in engineering technology.

Authors: Jin, Congrui¹ (AUTHOR) jincongrui@tamu.edu

Source: International Journal of Mechanical Engineering Education. Jul2025, Vol. 53 Issue 3, p564-580. 17p.

Subjects: Fluid mechanics, Numerical differentiation, Power (Mechanics), Analytical skills, Numerical integration

Revising recurrent neural networks to eliminate numerical derivatives in forming Physics-Informed loss terms with respect to time.

Authors: Jahani-nasab, Mahyar Bijarchi, Mohamad Ali

Source: Computational Mechanics. Apr2026, Vol. 77 Issue 4, p867-884. 18p.

Subjects: Recurrent neural networks, Numerical differentiation, Back propagation, Partial differential equations, Time, Inverse problems

Deep Collocation Method: A Numerical Algorithm Combining Reversible Neural Network and Spectral Differentiation for Solving the Incompressible Navier–Stokes Equations.

Authors: Chen, Ruilin Ma, Guihui Fang, Ming

Source: International Journal for Numerical Methods in Engineering. 4/15/2026, Vol. 127 Issue 7, p1-24. 24p.

Subjects: Reversible computing, Numerical differentiation, Discretization methods, Computational fluid dynamics, Artificial neural networks, Iterative methods (Mathematics), Incompressible flow

Physics-informed residual learning with spatiotemporal local support for inverse ECG reconstruction.

Authors: Zhu, Lingzhen Bilchick, Kenneth Xie, Jianxin

Source: Scientific Reports. 8/28/2025, Vol. 15 Issue 1, p1-21. 21p.

A kind of improved bivariate even order Bernoulli-type multiquadric quasi-interpolation operator and its application in two-dimensional coupled Burgers' equations.

Authors: Wu, Ruifeng¹ (AUTHOR) wuruifeng@jlufe.edu.cn

Source: Boundary Value Problems. 8/20/2025, Vol. 2025 Issue 1, p1-21. 21p.

Berger's winding number of polygonal braid using discretization.

Authors: Salman, Hussein Ali Mayah, Faik

Source: AIP Conference Proceedings. 2026, Vol. 3408 Issue 1, p1-10. 10p.

Second derivative numerical differentiation formulas for stiff systems of ODEs.

Authors: Hojjati, G. Abdi, A. Conte, D.

Source: Applied Numerical Mathematics. Aug2026, Vol. 226, p119-127. 9p.

Subjects: Numerical differentiation, Ordinary differential equations, Stability theory, Initial value problems, Approximation error, Numerical solutions to differential equations, Numerical analysis

Numerical differentiation approaches for kinematic orbit solutions.

Authors: Zapevalin, P.R. Zharov, V.E.

Source: Advances in Space Research. Feb2026, Vol. 77 Issue 3, p3889-3905. 17p.

Subjects: Numerical differentiation, Velocity measurements, Signal processing, Orbits (Astronomy), Gravitational fields, Orbital mechanics, Digital filters (Mathematics)

The Mittag-Leffler–Caputo–Fabrizio Fractional Derivative and Its Numerical Approach.

Authors: Alqhtani, Manal Sadek, Lakhlifa Saad, Khaled Mohammed

Source: Symmetry (20738994). May2025, Vol. 17 Issue 5, p800. 17p.

Numerical Approach for Trajectory Smoothing for LegUp Rehabilitation Parallel Robot.

Authors: Birlescu, Iosif Mihaly, Vlad Vaida, Calin et al.

Source: Mathematics (2227-7390). Apr2025, Vol. 13 Issue 8, p1241. 22p.

On self-regularization for the recovery of high order partial derivatives of bivariate functions.

Authors: Semenova, Y.V. Solodky, S.G.

Source: Mathematics & Computers in Simulation. Mar2026:Part A, Vol. 241, p1-14. 14p.

Subjects: High-order derivatives (Mathematics), Numerical differentiation, Multivariable calculus, Empirical research, Iterative methods (Mathematics), Mathematical regularization, Approximation error

Model-free quantum stabilisation via finite-difference Lyapunov control.

Authors: Vrabel, Robert¹ (AUTHOR) robert.vrabel@stuba.sk

Source: International Journal of Control. Apr2026, p1-22. 22p. 4 Illustrations.

Numerical differentiation of fractional order derivatives based on inverse source problems of hyperbolic equations.

Authors: Zewen Wang Shufang Qiua Xiuxing Ruib et al.

Source: Mathematical Modelling & Analysis. 2025, Vol. 30 Issue 1, p74-96. 23p.

Subjects: Numerical differentiation, Inverse problems, Superposition principle (Physics), Equations, Noise

Exact closed-form solution for the completely integrable helmholtz-duffing oscillator with applications to real-world problems.

Authors: Big-Alabo, Akuro Alfred, Peter B

Source: Journal of Low Frequency Noise, Vibration & Active Control. Mar2025, Vol. 44 Issue 1, p437-460. 24p.

A New Method for Obtaining the EEDF by Numerical Differentiation of Langmuir Probe I–V Characteristics Using the Savitzky–Golay and Blackman Filters.

Authors: Bernatskiy, A. V. Draganov, I. I. Dyatko, N. A. et al.

Source: High Energy Chemistry. 2025 Suppl 3, Vol. 59, pS234-S238. 5p.

Subjects: Langmuir probes, Numerical differentiation, Electron distribution, Digital filters (Mathematics), Glow discharges, Helium plasmas, Monte Carlo method

An Optimal Method for High-Order Mixed Derivatives of Bivariate Functions.

Authors: Semenova, Evgeniya V. Solodky, Sergiy G.

Source: Computational Methods in Applied Mathematics. Oct2024, Vol. 24 Issue 4, p967-982. 16p.