This interdisciplinary book presents numerical techniques needed for chemical and biological engineers using Matlab. The book begins by exploring general cases, and moves on to specific ones. The text includes a large number of detailed illustrations, exercises and industrial examples. The book provides detailed mathematics and engineering background in the appendixes, including an introduction to Matlab and a guide to the user friendly CD included in this book. The text will be useful to undergraduate students in chemical/biological engineering, and in applied mathematics and numerical analysis.