In this work provide alotof examples in different fields of chemical engineering and how to design accurate solutions by using MATLAB soft ware. Chapter 1 provides 19 examples to undergraduate students how to inter and use Matlab soft ware to solve the problems. Chapter 2 provides 18 examples in fluid flow includes different problems and how to solve these problems by programming. Chapter 3 provides 23 examples in heat transfer and energy balance with another applications includes different problems and how to solve these problems by programming. Chapter 4 provides 40 examples in modeling and chemical reaction design includes different problems and how to solve these problems by programming.