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  1. Only showing results from ibm.com

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  2. Fortran was born of necessity in the early 1950s, when computer programs were hand-coded. Programmers would laboriously write out rows of zeros and ones in precise order. John Backus, Fortran's primary author, described the process as "hand-to-hand combat with the machine," with the machine often winning. The cost of programmers was ...
    • IBM Fortran Compiler Family

      The next-generation Fortran compiler to develop complex, computationally intensive programs and optimize application performance on your Power enterprise platforms. Explore IBM Open XL Fortran for Linux on Power IBM Power XL Fortran for Linux Develops large and complex applications in the Fortran programming language. ...

    • Sample Fortran programs

      Example 1 - XL Fortran source file This is an example of an XL Fortran source file; Example 2 - valid C routine source file This is an example of a valid C routine source file used to execute Fortran test subroutines. Example 3 - valid Fortran SMP source file This is an example of a valid Fortran SMP source file used to calculate the value of pi.

    • VS FORTRAN

      FORTRAN is a programming language developed for applications involving mathematical computations and other manipulation of numeric data. It is especially well suited to scientific and engineering applications. IBM VS FORTRAN compiles FORTRAN code to generate efficient applications for the IBM z/OS® and IBM z/VM® platforms. It includes a ...

    • Mapping arrays between C and Fortran

      Arrays can be passed between C and Fortran routines when the array passed has its elements in contiguous storage locations. In addition, in a called Fortran routine, the declaration of the array must indicate a constant number of elements along each dimension.. In C, arrays of more than one dimension are arranged in storage in row major order, while in Fortran they are arranged in column major ...

    • Standards and specifications

      IBM® Open XL Fortran is designed to support the following standards and specifications. You can refer to these standards and specifications for precise definitions of some of the features found in this information. American National Standard Programming Language FORTRAN, ANSI X3.9-1978.

  3. The next-generation Fortran compiler to develop complex, computationally intensive programs and optimize application performance on your Power enterprise platforms. Explore IBM Open XL Fortran for Linux on Power IBM Power XL Fortran for Linux Develops large and complex applications in the Fortran programming language. ...
  4. Example 1 - XL Fortran source file This is an example of an XL Fortran source file; Example 2 - valid C routine source file This is an example of a valid C routine source file used to execute Fortran test subroutines. Example 3 - valid Fortran SMP source file This is an example of a valid Fortran SMP source file used to calculate the value of pi.
  5. research.ibm.com

    It describes the formation of the FORTRAN group, its knowledge of existing systems, its plans for FORTRAN, and the development of the language in 1954. It describes the development of the optimizing compiler for FOR TRAN I, of various language manuals, and of FORTRAN II and III. It concludes with remarks about later developments and the impact ...
  6. FORTRAN is a programming language developed for applications involving mathematical computations and other manipulation of numeric data. It is especially well suited to scientific and engineering applications. IBM VS FORTRAN compiles FORTRAN code to generate efficient applications for the IBM z/OS® and IBM z/VM® platforms. It includes a ...
  7. If a where_assignment_statement is present, the WHERE statement is not the first statement of a WHERE construct. If a where_assignment_statement is absent, the WHERE statement is the first statement of the WHERE construct, and is referred to as a WHERE construct statement. An END WHERE statement must follow. See WHERE construct for more information.. If the WHERE statement is not the first ...
  8. Supports FORTRAN 77, Fortran 90, Fortran 95, Fortran 2003, and a subset of Fortran 2008; supports a subset of Technical Specification 29113 for further interoperability of Fortran with C; helps to protect investments in existing Fortran source and object code that is built with previous versions of the compilers; supports the compatibility of object code or libraries that are compiled with ...
  9. Arrays can be passed between C and Fortran routines when the array passed has its elements in contiguous storage locations. In addition, in a called Fortran routine, the declaration of the array must indicate a constant number of elements along each dimension.. In C, arrays of more than one dimension are arranged in storage in row major order, while in Fortran they are arranged in column major ...
  10. IBM® Open XL Fortran is designed to support the following standards and specifications. You can refer to these standards and specifications for precise definitions of some of the features found in this information. American National Standard Programming Language FORTRAN, ANSI X3.9-1978.
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