ANSYS, Inc. Theory ReferenceWelcome to the ANSYS, Inc. Theory Reference. This manual presents theoretical descriptions of all elements, as. well as of many procedures and commands used in ANSYS, Inc ... the ANSYS, Inc. Theory Reference describes the relationship between input data and output results produced by ... Purpose of the ANSYS Theory Reference. The purpose of the ANSYS, Inc. Theory Reference is to inform you of the theoretical basis of ANSYS, Inc. products, ...