On 12 November 2025, Google has launched a special animated Doodle titled “Learning the Quadratic Equation (India)” a vibrant ...

Abstract: In this paper, we define the Windowed Octonion Quadratic Phase Fourier Transform (WOQPFT) and derive its inversion formula, including its essential properties, such as linearity, ...

Abstract: Consider a unicast downlink beamforming optimization problem with robust signal-to-interference-plus-noise ratio constraints to account for imperfect channel state information at the base ...

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Inequalities play a crucial role in mathematics and its applications. Graphing inequalities provides a visual representation, allowing us to analyze and interpret the solutions more effectively. Here ...

Quadratic inequalities are an essential concept in mathematics, often appearing in advanced algebra courses, and it is crucial to have a methodical approach for solving them. This article provides a ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

1 School of Insurance, University of International Business and Economics, Beijing, China 2 School of Mathematics, Baotou Teachers' College, Baotou, China Background: China's rapid economic and social ...

This paper investigates a quadratic programming problem subject to fuzzy relation inequalities with the addition-min composition operator. Three different approaches for solving the problem are ...