Khadeejah James AuduYak Chiben ElishaYusuph Amuda YahayaSikirulai Abolaji Akande2025-04-232024-06-28Audu, K. J., Elisha, Y. C., Yahaya, Y. A. & Akande, S. A. (2024). The Practical Integration of Linear Algebra in Genetics, Cubic Spline Interpolation, Electric Circuits and Traffic Flow. Bitlis Eren University Journal of Science and Technology, 14(1) 23-42.2146-7706http://repository.futminna.edu.ng:4000/handle/123456789/901This study explores how linear algebra is practically applied across four key areas: genetics, cubic spline interpolation, electric circuits, and traffic flow analysis. It demonstrates how matrix operations and systems of equations help solve real-world problems in each field, showcasing the power of linear algebra in interdisciplinary applications and problem-solving.A fundamental mathematical field with many applications in science and engineering is linear algebra. This paper investigates the various applications of linear algebra in the fields of traffic flow analysis, electric circuits, cubic spline interpolation, and genetics. This research delves into individual applications while emphasizing cross-disciplinary insights, fostering innovative solutions through the convergence of genetics, cubic spline interpolation, circuits, and traffic flow analysis. The research employs specific methodologies in each application area to demonstrate the practical integration of linear algebra in genetics, cubic spline interpolation, electric circuits, and traffic flow analysis. In genetics, linear algebra techniques are utilized to represent genetic data using matrices, analyze genotype distributions across generations, and identify genotype-phenotype associations. For cubic spline interpolation, linear algebra is employed to construct smooth interpolating curves, involving the derivation of equations for spline functions and the determination of coefficients using boundary conditions and continuity requirements. In electric circuit analysis, linear algebra is crucial for modeling circuit elements, formulating systems of linear equations based on Kirchhoff's laws, and solving for voltage and current distributions in circuits. In traffic flow analysis, linear algebra techniques are used to represent traffic movement in networks, formulate systems of linear equations representing traffic flow dynamics, and solve for traffic flow solutions to optimize transportation networks. By addressing contemporary challenges, emerging research frontiers, and future trajectories at the intersection of linear algebra and diverse domains, this study underscores the profound impact of mathematical tools in advancing understanding and resolving complex real-world problems across multiple fields.enArticle