Marcus du Sautoy uses combinations of peaches and plums and a set of scales, to show how simultaneous equations can be solved. This method didn’t appear in the West until the 19th century, but had ...

You can get solutions with the least-squares method even if overdetermined systems (the number of equations is greater than the number of variables). It is written in C++. C++11 or later is required.

ABSTRACT: This study investigates the impact of trade liberalization on economic growth in East African Community (EAC) countries from 1990 to 2020. Using a Panel Autoregressive Distributed Lag (ARDL) ...

Abstract: In this work, we propose a complex-valued neural operator (CV-NeuralOp) based on graph neural networks (GNNs) to solve 2-D wave equations. Inspired by Green’s function method for solving ...

Final project @ Numerical Linear Algebra (数值代数) at Peking University. Consider the Stokes equations: $$-\Delta \vec{u} + \nabla p = \vec{F}, (x, y) \in (0,1 ...

Mass balances are an essential tool in chemical engineering, environmental studies, and other fields that deal with calculations involving the flow of materials. In simple terms, a mass balance ...