Mathematical Methods is designed to meet the requirements of students of sciences and engineering. The book offers the following topics: interpolation, curve fitting matrices, eigenvalues and eigenvectors, quadratic form, Fourier series, partial differential equation, and Z-transforms. Each chapter is supplemented with a number of worked-out examples, as well as number of problems to be solved by the students, which will help with better understanding the subject.eigenvalues and eigenvectors, quadratic form, Fourier series, partial differential equation and Z-transforms. Each chapter is supplemented with a number of worked-out examples, as well as number of problems to be solved by the students, which will help with better understanding the subject.