# 1 Introduction

The language information in this manual applies to Compaq Fortran 77 (formerly Digital Fortran 77 or DEC Fortran) on all supported platforms, unless it is otherwise labeled. See the Preface for details on platform labels and conventions used within text.

This chapter discusses Compaq Fortran 77 language standards and gives an overview of language compatibility. It also discusses the elements, character set, and coding rules in Fortran programs, and presents compilation control statements.

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