💡 Problem Formulation: When you’re dealing with polynomial approximation or probabilistic computations, you might need to evaluate Hermite polynomials at a given set of points. The problem involves calculating the values of Hermite E polynomials (physicist’s version) for a list of points x, where the input is a list of numerical values and the desired … Read more

💡 Problem Formulation: When working with probabilistic representations and Gaussian processes, evaluating a Hermite E series at specific points using a multidimensional coefficient array becomes essential. Given a set of coefficients which may be multidimensional, and a point or array of points X, the goal is to calculate the Hermite function values efficiently in Python. … Read more

💡 Problem Formulation: This article tackles the specific problem of evaluating a 3D Laguerre series at arbitrary points (x, y, z). Given a set of Laguerre coefficients and point coordinates, the desired output is the series’ value at these points. For example, with coefficients [a0, a1, …] and points [(x1, y1, z1), (x2, y2, z2) … Read more

💡 Problem Formulation: In computational mathematics, evaluating a 3D Laguerre series on the cartesian product of coordinates x, y, and z involves calculating a value using a four-dimensional array of coefficients. Specifically, we want to determine the sum of Laguerre polynomial products across the three variables using the given coefficients. For example, given arrays of … Read more

💡 Problem Formulation: When working with Hermite polynomial series in Python, one might need to perform integration over a specific axis of a multidimensional array. This operation is crucial in fields like computational physics and statistics, where Hermite polynomials are a central mathematical tool. Consider having a two-dimensional array representing a series of Hermite polynomial … Read more

💡 Problem Formulation: Integrating a Hermite series along a particular axis in Python refers to computing the antiderivative or integral of a series expansion expressed in terms of Hermite polynomials. In this case, we focus on integrating over axis 1 (columns) of a 2D array. For example, given a 2D array representing the coefficients of … Read more

💡 Problem Formulation: This article tackles the challenge of generating a Vandermonde matrix, specifically for Hermite polynomials, using a complex array of points as its input. The goal is to compute a matrix where each row represents an increasing degree of the Hermite polynomial evaluated at each point in the complex array. For example: given … Read more

💡 Problem Formulation: A Vandermonde matrix is a square matrix with the terms of a geometric progression in each row. When dealing with Hermite polynomials, a pseudo-Vandermonde matrix incorporates the values derived from these polynomials. This article will demonstrate how to generate such a matrix in Python, starting with a sequence of points (e.g., x … Read more

💡 Problem Formulation: A pseudo Vandermonde matrix for Hermite polynomials is computed from a set of points and involves evaluating Hermite polynomials at those points to create the matrix. The input is a float array of point coordinates, e.g., [1.0, 3.5, 5.2]. The desired output is a matrix where each column is the evaluation of … Read more

💡 Problem Formulation: When working with Laguerre polynomials in Python, it’s common to encounter situations where small trailing coefficients may be negligible and can be discarded to simplify the polynomial. This article demonstrates multiple techniques to remove such coefficients effectively. Given an input Laguerre polynomial, for example, L(x) = 0.1x^3 + 2.5x^2 + 0.0001x + … Read more

💡 Problem Formulation: When working with orthogonal polynomials in numerical methods or spectral analysis, one may encounter Laguerre series. These series represent functions as linear combinations of Laguerre polynomials. The task is to convert such a series into a standard polynomial form. For instance, given a Laguerre series defined by coefficients [2, 1, 3], the … Read more

💡 Problem Formulation: Converting polynomial functions to Laguerre series is a procedure often required in numerical analysis and computational physics. The challenge lies in expressing a given polynomial as a series of Laguerre polynomials. For instance, we want to convert the polynomial p(x) = 3x^2 + 2x + 1 into a series of the form … Read more