This textbook is an elementary introduction to the basic principles of partial differential equations. With many illustrations it introduces PDEs on an elementa

An accessible introduction to the finite element method for solving numeric problems, this volume offers the keys to an important technique in computational mat

A systematic introduction to partial differential equations and modern finite element methods for their efficient numerical solution Partial Differential Equati

When first published in 1977, this volume made recent accomplishments in its field available to advanced undergraduates and beginning graduate students of mathe