While a free PDF of the 5th edition is not legally available, there are legitimate ways to access the book and its resources.

Expanding differentiable functions into infinite polynomial series. Applications of Derivatives

Before hunting for the PDF, one must understand the author’s authority. Abdul Matin is a revered figure in Bangladeshi higher education. His books are not mere translations of Western texts; they are curated for the specific syllabi of universities under the National University of Bangladesh and various Indian state universities.

from Bangladesh/India)

The book "Differential Calculus" by Abdul Matin provides a comprehensive introduction to the subject of differential calculus. The book covers the following topics:

Expanding functions like exe to the x-th power into infinite power series around a specific point. 5. Partial Differentiation