Simon Fraser University

Finite Difference Approximations of Derivatives

First-order derivatives: n additional function calls are needed. Second-order derivatives based on gradient calls, when the "grd" module is specified (Dennis and Schnabel 1983): n additional gradient ...
IEEE

Finite-Difference Gradient Approximation Based Phase Shift Adaptive Correction Flux Waveform Controller in Ferromagnetic Material Testing

Abstract: Among various magnetic property measurement devices, single-sheet testers (SSTs) are widely used due to their adaptability. However, the inherent nonlinearity of SSTs introduce unknown phase ...
IEEE

An Efficient Finite-Difference Approximation

Abstract: Estimating stochastic gradients is pivotal in fields like service systems in operations research. The classical method for this estimation is the finite-difference approximation, which ...
GitHub

2D Lid Driven Cavity Flow

This repo provides a MATLAB example code for the lid-driven cavity flow where incompressible Navier Stokes equation is numerically solved using a simple 2nd order finite difference scheme on a ...
GitHub

Sums of powers via backward finite differences and Newton's formula

MSC2010: 05A19, 05A10, 11B83, 03C40. Keywords: Sums of powers, Newton's interpolation formula, Finite differences, Binomial coefficients, Faulhaber's formula ...