Phasor Methods of AC Circuit Analysis: This book presents a Phasor Tool Box which contains most functions that would be needed to do phasor calculations and enable students to visualize in the phasor diagrams. The tool box is designed in MATLAB and requires students to have minimal scripting background, keeping in mind that these tools will be used by the beginner students in Electrical engineering/Technology programs. This tool box employs object oriented MATLAB programming methods but are transparent to users. Using these tools is as easy as using algebra for adding, subtraction, multiplication, division of phasors, and additionally visualize these operations in the complex plane. It is hoped that introduction of the phasor methods would help in fortifying the conceptual learning. This book is not intended to be a textbook but it can be used as the co-book. This book is aimed at the students who are just beginning circuit analysis in the undergraduate program of engineering/technology and have either working knowledge of MATLAB programming or have worked on the tutorial in Appendix A and D prior to starting on Chapter 1. Code of all Phasor Tool Box functions are given in Appendix E and can also be downloaded (free download) from https: //professorjaiagrawal.weebly.com/phasor-methods-in-ac-circuit-analysisfirst-course-in-digital-control.html