# Index E

    Edit descriptors
      character string, [+] to [+]
      control, [+] to [+]
         forms for, [+]
      data, [+] to [+]
         forms for, [+]
         rules for numeric, [+]
      summary of, [+]
    Editing
      general rules for numeric, [+]
      integer, [+]
    E edit descriptor,  [+]
    Elapsed time
      function for calculating in seconds, [+]
    Elemental intrinsic procedures
      definition of, [+]
      references to, [+]
    ELEMENTAL prefix
      in FUNCTION statements, [+]
      in SUBROUTINE statements, [+]
    Elemental user-defined procedures,  [+]
      functions as, [+]
      subroutines as, [+]
    Element array assignment statements (FORALL),  [+]
    Elements
      See Array elements
    ELSE directive,  [+]
    ELSE IF directive,  [+]
    ELSE IF statement,  [+]
      branching to, [+]
    ELSE statement,  [+]
      branching to, [+]
    ELSEWHERE statement,  [+]
    ENCODE statement,  [+]
      example of, [+]
    END branch specifier,  [+]
    END DO statement,  [+], [+]
    Endfile records
      See End-of-file records
    ENDFILE statements
      on U*X, WNT, W9*, [+]
      on VMS, [+]
      producing an end-of-file condition, [+]
    END IF directive,  [+]
    END IF statement,  [+]
      branching to, [+]
    End-of-file condition,  [+]
      function to check, [+]
      I/O specifier for, [+]
    End-of-file records
      writing to a file
         on U*X, WNT, W9*, [+]
         on VMS, [+]
    End-off shift
      of arrays
         function performing, [+]
    End-of-record condition,  [+]
      I/O specifier for, [+]
    END statement,  [+]
      retention of data after execution of, [+]
    EN edit descriptor,  [+]
    Engineering notation
      descriptor for (EN), [+]
    Entry names
      referencing, [+]
    Entry points
      for function subprograms, [+]
      for subprograms, [+] to [+]
      for subroutine subprograms, [+]
    ENTRY statement,  [+] to [+]
      See also your user manual or programmer's guide
      data types of names in, [+]
      in function subprograms, [+]
      in subroutine subprograms, [+]
      RESULT keyword in, [+]
      using with FUNCTION statement, [+]
      using with SUBROUTINE statement, [+]
    Environment variables
      See your user manual or programmer's guide
    EOF function,  [+], [+]
    EOR branch specifier,  [+]
    EOSHIFT function,  [+], [+]
    EPSILON function,  [+], [+]
    .EQ.
      See Relational operators
      See also your user manual or programmer's guide
    Equivalence
      association, [+]
      logical, [+]
      set, [+]
    EQUIVALENCE statement,  [+] to [+]
      See also your user manual or programmer's guide
      compared to union declaration, [+]
      examples of, [+]
      interaction with COMMON, [+]
      using with arrays, [+]
      using with substrings, [+]
    .EQV.
      See Logical operators
    ERR branch specifier,  [+]
    Error conditions
      I/O specifier for, [+]
      subroutine returning information on, [+]
    Errors
      See your user manual or programmer's guide
    ERRSNS subroutine,  [+], [+]
    Escape sequences
      C-style, [+]
    ES edit descriptor,  [+]
    Exclamation point character (!)
      as comment indicator, [+], [+]
    Exclusive OR,  [+]
      function performing, [+]
    Executable constructs
      named, [+]
    Executable statements,  [+]
      disallowed in main programs, [+]
    Executing
      DO loops, [+]
      programs
         See Program execution
    EXIST specifier
      in INQUIRE statements
         on U*X, WNT, W9*, [+]
         on VMS, [+]
    EXIT statement,  [+], [+]
    EXIT subroutine,  [+], [+]
    EXP function,  [+], [+]
    Explicit format,  [+], [+] to [+]
      using character expressions, [+]
    Explicit interfaces,  [+]
      defining, [+]
      of dummy procedures, [+]
      when required, [+]
    Explicit-shape arguments,  [+]
    Explicit-shape arrays,  [+]
      adjustable, [+]
      automatic, [+]
    EXPONENT function,  [+], [+]
    Exponential operator (**),  [+]
      in initialization expressions, [+]
      order of precedence of, [+]
    Exponential values
      function returning, [+]
    Exponents
      function returning range of decimal, [+]
    Expressions,  [+] to [+]
      See also Character expressions
      See also Logical expressions
      See also Numeric expressions
      See also Relational expressions
      character, [+]
      conversion of, [+]
      determining data type of, [+]
      element array, [+]
      initialization, [+]
      length
         effect on character assignments, [+]
      logical, [+]
      masked array, [+]
      numeric, [+]
         effects of parentheses within, [+]
         operator precedence in, [+]
         order of evaluation in, [+]
      relational, [+]
      specification, [+]
      variable format, [+]
      with arrays as operands, [+]
      with pointers as operands, [+]
    Extended intrinsic operators
      properties of, [+]
    Extended ranges
      for DO constructs, [+]
    Extending arrays,  [+], [+]
    EXTENDSIZE specifier (VMS)
      effect on INITIALSIZE, [+]
      in OPEN statements, [+]
    EXTEND_SOURCE
      OPTIONS option, [+]
    Extent
      definition of, [+]
      function returning, [+]
    EXTERNAL attribute and statement,  [+]
      attributes compatible with, [+]
    External fields
      separating, [+]
    External field separators,  [+], [+]
      comma as, [+]
    External files
      connecting to units
         on U*X, WNT, W9*, [+]
         on VMS, [+]
      definition of, [+]
    External procedures,  [+]
      See also Functions
      See also Subroutines
      compared to internal procedures, [+]
      declaring, [+]
      definition of, [+]
      invoking with CALL, [+]
      using as actual arguments, [+]
      with the same name as intrinsic procedures, [+]
    External records
      transferring
         direct-access input, [+]
         direct-access output, [+], [+]
         sequential access input, [+], [+]
         sequential access output, [+], [+]
    EXTERNAL statement
      block data program unit in, [+]
      FORTRAN-66 interpretation of, [+]
      names in, [+]
      using with intrinsic procedures, [+]
    External subprograms,  [+]
      providing entry points within, [+]
    EXTERN keyword
      for ATTRIBUTES directive, [+]
    EXTRINSIC prefixes
      in FUNCTION statements, [+]
      in SUBROUTINE statements, [+]

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