Stanford Fortran Tutorials

This project contains the famous Stanford tutorials on Fortran 77 and Fortran 90 converted to LaTeX source code and then compiled to PDFs:

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Here are the URLs of the original tutorials that were published as HTML pages:

• https://web.stanford.edu/class/me200c/tutorial_77/
• https://web.stanford.edu/class/me200c/tutorial_90/

Content

• Differences from the Originals
• Fortran 77 Tutorial: Fixes

Differences from the Originals

The LaTeX source code has been written in such a manner that the content of the compiled PDFs is as close to the original content as possible. However, in the interest of better typography and correctness, a few changes are present:

• Add syntax highlighting to code examples.
• Update all headings to use title case consistently. The original tutorials use title case for some headings and sentence case for others.
• Remove trailing colon from heading.
• Display any inline code fragment, file names, commands, etc. in monospace font. The original tutorials use either regular or italic font.
• Fix typos.
• Render mathematical expressions in the text (not the ones in the code examples) using LaTeX math mode.
• Slightly more vertical space the copyright notice at the bottom of every section and the text above the copyright notice.

Fortran 77 Tutorial: Fixes

Section 3: Fotran 77 Basics

• In the original tutorial, in the "Continuation" subsection, there is a comment line that begins with c23456789. The text within parentheses on the same line is italicized as if it were not part of the comment.

  In this project, the text within parentheses is not italicized and it is syntax highlighted like a comment.

Section 4: How to Use Fortran on the Unix Computers at Stanford

• The original tutorial contains this phrase:

  you have translate the program into machine readable form

  In this project, this phrase has been fixed to:

  you have to translate the program into machine readable form

  The fix is emphasized in italics above.

• The original tutorial contains this phrase:

  You can separate these two step by using

  In this project, this phrase has been fixed to:

  You can separate these two steps by using

  The fix is emphasized in italics above.

Section 5: Variables, Types, and Declarations

• The original tutorial contains this incorrect paragraph:

  The words which make up the Fortran language are called reserved words and cannot be used as names of variable. Some of the reserved words which we have seen so far are "program", "real", "stop" and "end".

  In reality, these keywords can be used as variable names. Here is an example program:

        program variables
  
        integer program
        integer real
        integer stop
        integer end
  
        program = 10
        real = 20
        stop = 30
        end = 40
  
        write (*,*) program, real, stop, end
  
        stop
        end

  This incorrect paragraph has been removed in this project. This incorrect paragraph is missing from this URL as well: http://www.tat.physik.uni-tuebingen.de/~kley/lehre/ftn77/tutorial/variables.html. The tutorial in this URL appears to be based on an older version of the original tutorial from 1995 (as opposed to the latest version of the original tutorial from 1997).

• The entry for double precision in the original tutorial is misaligned. It has been fixed in this project.

Section 7: Logical Expressions

• In the original tutorial, the list of relational operators is misaligned and contains stray double-quotes due to incorrect HTML. This has been fixed in this project.

• In the original tutorial, in the list of relational operators, the description for each operator is not italicized. In this project, they are italicized to keep it consistent with the list of types in section 5.

• The original tutorial displays this incomplete sentence due to incorrect HTML in its source code:

  So you cannot use symbols like

  This has been fixed to:

  So you cannot use symbols like < or = for comparison in Fortran 77, but you have to use the correct two-letter abbreviation enclosed by dots!

  This fix was also found at http://www.tat.physik.uni-tuebingen.de/~kley/lehre/ftn77/tutorial/logical.html. which appears to be based on an older version of the original tutorial from 1995.

• The original tutorial contains this sentence:

  Logical expressions can be combined by the logical operators .AND. .OR. .NOT. which have the obvious meaning.

  In this project, commas and conjunction have been added between the logical operator tokens like this:

  Logical expressions can be combined by the logical operators .AND., .OR., and .NOT. which have the obvious meaning.

Section 8: The if Statements

• The last example in this section appears incomplete due to incorrect HTML in its source code. Further, the paragraph following it appears in monospace font as part of the source code. This has been fixed in this project. This fix was also found at http://www.tat.physik.uni-tuebingen.de/~kley/lehre/ftn77/tutorial/logical.html. which appears to be based on an older version of the original tutorial from 1995.

Fortran 90 Tutorial: Fixes

Table of Contents

• In the original tutorial, the table of contents in the index page contains the copyright notice in the ordered list. As a result, the copyright notice is a list item and appears indented like other list items.

  In this project, the copyright notice has been moved out of the ordered list.

Section 4: How to Use Fortran on the Unix Computers at Stanford

• The original tutorial contains this phrase:

  If you think you're program should compile

  In this project, this phrase has been fixed to:

  If you think your program should compile

  The fix is emphasized in italics above.