We have great pleasure in bringing out two books entitled “MATLAB Part A: Tutorial” and “MATLAB Part B: Programs with sample run output” for diplomaEngineering. This book is designed for comprehensively covering all basic topics relevant to the subject. Each and every topic has been explained in a very simple language. Part A is concerned with the basic concept of MATRIX LAB. It deals with the MATLAB Environment along with the help feature, file types, constants and variables declaration, expressions, inputoutput statements, 1D array, 2D arrays, plots, control structures and few practice programs.