Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Starting from the Hamilton-Jacobi equation for N electrons in the field of a nucleus or an ion core, we derive a parabolic differential equation that resembles the heat equation. We identify a Fresnel ...

To overcome this difficulty, this paper presents a simple differential quadrature procedure in which the Dirac-delta function is replaced by regularized smooth functions. By regularizing the ...

In a series of papers [11, 12, 13], the authors claim that not only the solutions of the TISE equation may have unnoticed delta functions, but the differential expressions of the equation may have ...

Abstract: This article investigates the retarded differential equation on time scales and presents several criteria on uniform (asymptotic) stability by the relaxed Lyapunov–Razumikhin method.

PythonicDISORT is based on Stamnes' FORTRAN DISORT (see References, in particular [2, 3, 8]) and has its main features: multi-layer solver, delta- M scaling, Nakajima-Tanaka (NT) corrections, only ...

On Tuesday, MIT researchers announced that they have devised a solution to a vexing computational bottleneck, not by widening the data pipeline, but by solving a differential equation that has ...