Computation has always been a nightmare to most scholars, hence the main reason for the publication of this book. Essential of Mathematics does not only give a complete insight to analytical solutions of different problems but allays fear/anxiety from students. It is precise, chronological, and very easy to comprehend. After the analytical solutions of most questions, there is always a fast approach in order to limit the period of solving examination questions. The text book is not only for engineering students but a generic textbook that covers both elementary and advance topics in computation. This is because most scholars tend to forget some basic principles (I once met a third year undergraduate student who forgot differentiation while learning Laplace transformation). Therefore, this book can be renamed "Consultative Book". The first few chapters are on fundamentals for any pre-university examination (e.g. WAEC, A-level, GCSE, JAMB etc.) while the latter chapters are basically for Engineers and Scientists. Happy Reading!