We here begin with a brief description of the fundamental equations which is indispensable to solve the boundary value problem of potential theory in cylindrical coordinates.
This is a book about geography. It is also about Geographic Information Systems (GIS) – a fundamental set of automated ideas and concepts rooted in over 2500 years of explorations and geographic research (Dobson, 1995) and designed to provide answers to questions based on mapped data. As a practicing geographer I have long been intrigued by the idea of geographer as explorer.