Math

💡 Problem Formulation: Generating the pseudo Vandermonde matrix involves creating a structured matrix where each column is a polynomial function applied over a grid of points. This article aims to demonstrate how to generate such matrices specifically using Legendre polynomials over an array of points (x, y, z). The input is a set of points … Read more

💡 Problem Formulation: Calculating the values of a 2D Hermite E series involves evaluating polynomials over a grid formed by the Cartesian product of x and y values. For given one-dimensional arrays x and y, and a three-dimensional array coefficients representing the series’ coefficients, we aim to efficiently compute the series’ values at each point … Read more

💡 Problem Formulation: Mathematicians and data scientists often face the challenge of generating a Vandermonde matrix, particularly for complex Legendre polynomials. This article demonstrates how to produce a pseudo Vandermonde matrix for the Legendre polynomial and a complex array of (x, y) points in Python. For example, given a set of points and a degree … Read more

💡 Problem Formulation: Evaluating a 2D Hermite E series involves computing the values of two-dimensional Hermite functions over a grid formed by the Cartesian product of x and y coordinate arrays. This operation has applications in many fields such as quantum mechanics, image processing, and statistical analysis. For example, if given arrays x = [x_1, … Read more

💡 Problem Formulation: In mathematical and computational fields, it’s common to work with orthogonal polynomials such as Legendre polynomials. Evaluating a two-dimensional (2D) Legendre series on the Cartesian product of two domains, x and y, involves computing values over a grid defined by these two variables. This article aims to illustrate Python methods to perform … Read more

💡 Problem Formulation: We aim to generate a pseudo-Vandermonde matrix using Legendre polynomials given a complex array of points with coordinates (x, y, z). The Vandermonde matrix is a key component in various numerical and approximate calculations, and its construction for complex points via Legendre polynomials extends its applications. The typical input is a list … Read more

💡 Problem Formulation: In computational mathematics, evaluating a Legendre series at specific points involves calculating the sum of Legendre polynomials weighted by a set of coefficients for each point. When dealing with 3D space and a 2D coefficient array, this task can become complex. The input consists of a 2D array representing the coefficients of … Read more

💡 Problem Formulation: This article focuses on constructing a pseudo Vandermonde matrix utilizing Legendre polynomials evaluated at a grid of floating-point numbers representing 3D coordinates (x, y, z). The generating process involves mathematical operations that efficiently compute this matrix. As an example, given a set of points such as [(1.0, 2.0, 3.0), (4.0, 5.0, 6.0)], … Read more

💡 Problem Formulation: When working with Hermite E series in three dimensions, particularly for applications in computational physics or computer graphics, it is often necessary to evaluate the series at specific points (x, y, z) using a given set of coefficients. This problem typically involves traversing the coefficients in a 2D array to calculate the … Read more

💡 Problem Formulation: Creating a Vandermonde-like matrix using Hermite E polynomials and a given 3D array of floating points (x, y, z) is essential for various numerical and scientific computations. The challenge lies in transforming a set of points into a matrix form where rows correspond to the points and columns correspond to the Hermite … Read more