Computational Approach to Riemann Surfaces Introduction to Compact Riemann Surfaces Computing with plane algebraic curves and Riemann surfaces: the algorithms of the Maple package “algcurves” Algebraic curves and Riemann surfaces in Matlab Computing Poincaré Theta Series for Schottky Groups Uniformizing real hyperelliptic M curves using the Schottky Klein prime function Numerical Schottky Uniformizations: Myrberg’s Opening Process Period Matrices of Polyhedral Surfaces On the spectral theory of the Laplacian on compact polyhedral surfaces of arbitrary genus This volume offers a well structured overview of existent computational approaches to Riemann surfaces and those currently in development. The authors of the contributions represent the groups providing publically available numerical codes in this field. Thus this volume illustrates which software tools are available and how they can be used in practice. In addition examples for solutions to partial differential equations and in surface theory are presented. The intended audience of this book is twofold. It can be used as a textbook for a graduate course in numerics of Riemann surfaces in which case the standard undergraduate background i.e. calculus and linear algebra is required. In particular no knowledge of the theory of Riemann surfaces is expected; the necessary background in this theory is contained in the Introduction chapter. At the same time this book is also intended for specialists in geometry and mathematical physics applying the theory of Riemann surfaces in their research. It is the first book on numerics of Riemann surfaces that reflects the progress made in this field during the last decade and it contains original results. There are a growing number of applications that involve the evaluation of concrete characteristics of models analytically described in terms of Riemann surfaces. Many problem settings and computations in this volume are motivated by such concrete applications in geometry and mathematical physics