In mathematical analysis, finite-dissimilarity methods (FDM) are a class of mathematical techniques for solving characteristic equations by approximating derivatives accompanying finite distinctnesses. Both the spatial domain and opportunity interval (if applicable) are discretized, or crushed into a finite number of steps, and the worth of the solution at these discrete points is approximated by answering algebraic equatings containing finite distinctnesses and values from nearby points. Finite difference patterns convert ordinary characteristic equations (ODE) or partial characteristic equations (PDE), which concede possibility be nonlinear, into a system of undeviating equations that can be resolved by matrix algebra methods. Modern computers can act these linear algebra computations capably which, along with their relative ease of exercise, has led to the extensive use of FDM in modern numerical reasoning. Today, FDMs are one of the most universal approaches to solving PDEs, in addition to finite element means. This paper suggests a solution by construction up a library of solvers utilizing spreadsheets, with the effect that the encapsulated information of building modelling solvers can later be secondhand for education or evident-world problems. This study raises concern about the encased body of knowledge that has provided to the emergence and the establishment of forming software applications because 1980. This body of knowledge forms a deep understanding of differential equations that interpret physical problems and their mathematical transformation into methods of linear equations.

**Author(s) Details:**

**Farzin Salmasi,
**Department of Environmental Health, Dian Nuswantoro University Semarang, Indonesia.

**John Abraham,
**School of Engineering, University of St. Thomas, 2115 Summit Avenue St. Paul, Minnesota-55105, USA.

**Please see the link here: **https://stm.bookpi.org/RDASS-V6/article/view/7860

**Keywords: **Finite difference method, ordinary differential equations, numerical computations, partial differential equations