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A Guide to PL/I for
FORTRAN Users

Student Text
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Student Text
Preface

This manual is an introductory guide to PL/I written
especially for those who have a working knowledge of
FORTRAN II or IV. No particulaI: machine imple-
mentation of FORTRAN or PL/I has been assumed.
Part 1 gives a broad survey of PLjI. A sample pro-
gram illustrating some of the principal features of the
language is explained siep by siep.
Part 2 gives sufficient detail for the user to be able
to write a straightforward program for himself. It is
not a rigorous exposition. Examples have been used
to clarify the text. The terminology used is intended
to be that which is familiar to a FORTRAN user.
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users, although some of them are familiar to those
who know COBOL or ALGOL. Where references to
COBOL or ALGOL will help readers who know these
languages, the reference is made, but the explanation
is also given in full for those \vho do not.
This guide does not attempt to cover all the features
of the language. Many facilities have not been men-
tioned at all, and some of the statements and features
have not been explained in full detail.
Other related publications are "A PL/I Primer," Form
C28-6808, "A Guide to PL/I for Commercial Program-
mers," Form C20-1651, and IBM System/360; PL/I
Reference l\,fanual, Form C28-8201.

Major Revision (May 1968)

Requests for copies of IBM publications should be made to your IBM representative or
to the IBM branch office serving your locality. Address comments concerning the
contents of this publication to IBM Corporation, DPD Education Development -
Publications Services. Education Center. South Road. Poughkeepsie. New York 12602.