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API, Reference Guides
Overview of external readers and the Altair Binary Format, the generic ASCII reader, running applications in batch mode, using Tcl/Tk commands, translators, and result math.
Templex and Math Reference Guide
Math Reference
Mathematical functions and operators, including syntax, operators and specific information about each function.
Functions and Operators
Overview of functions and operators.
Operators
List of operators.
--
Decrement operator.

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API, Reference Guides
Overview of external readers and the Altair Binary Format, the generic ASCII reader, running applications in batch mode, using Tcl/Tk commands, translators, and result math.
- Extensions
  Extensions are programs integrated with the application to enhance or extend the user experience.
- External Readers and Altair Binary Format
  Altair Binary Format (ABF) is the standard binary format read by the program. A library called abflib allows you to create files in ABF.
- Generic ASCII Reader
  A generic ASCII reader is now available which allows you to bring custom results directly into HyperView. The Altair ASCII format is useful for reading the results of any in-house or propriety codes which are saved in a generic format.
- Batch Mode
  Batch mode allows you perform a series of operations outside the program interface.
- External Resources
  External resources can be registered in preference files, session files, or Templex files. If an external resource is registered in a program session, it is automatically registered in the session file when the session is saved.
- Python API
  The Python API documentation for HyperMesh applications.
- Tcl/Tk Commands
  The application's scripting interface is a set of Tcl/Tk commands that follow a simple and consistent syntax.
- Translators
  Translators are utilities that are run from the command line of the operating system to convert various types of files into different formats.
- Result Math
  XML commands in the Result Math Module.
- HWC Console
  Record playback workflows in the application.
- HyperMesh Report
- Task Manager
  Use the Task Manager to load an XML file that defines tasks and their attributes.
- HyperMesh
- MotionView
- Templex and Math Reference Guide
  - Templex Reference
    Templex is a general purpose text and numeric processor which generates output text based on guidelines defined in a template.
  - Math Reference
    Mathematical functions and operators, including syntax, operators and specific information about each function.
    - Data Types
      The mathematical functions accept arguments of different data types.
    - Order of Precedence
      The standard mathematical order of operations is followed when an expression is evaluated.
    - Functions and Operators
      Overview of functions and operators.
      - Operators
        List of operators.
        (unary)-
        Additive inverse.
        {}
        Denotes a vector, matrix, string, or string array definition.
        +
        Addition operator.
        =
        Assignment operator.
        *
        Multiplication operator.
        -
        Subtraction operator.
        /
        Division operator.
        ^
        Syntax
        %
        Modulus operator.
        '
        Transpose operator.
        !
        Logical "not" operator.
        &&
        Logical "and" operator.
        ||
        Logical "or" operator.
        <
        "Less than" operator.
        <=
        "Less than or equal to" operator.
        >
        "Greater than" operator.
        >=
        "Greater than or equal to" operator.
        ==
        Equality operator.
        !=
        Inequality operator.
        ++
        Increment operator.
        --
        Decrement operator.
        +=
        Addition assignment operator.
        -=
        Subtraction assignment operator.
        *=
        Multiplication assignment operator.
        /=
        Division assignment operator.
        :
        Range operator.
        [index]
        Index function.
        cross
        Cross product operator.
        dot
        Dot product operator.
      - Standard Functions
        List of standard functions.
      - External Functions
        List of external functions.
    - Signal Processing
      Overview of Fast Fourier Transform, phenomena, windowing, Filtering Frequency Response, functions, blocking, and Hilbert Transform.
- Script and Model Library
  The Script and Model Library is a database of freely accessible scripts and models posted by users and Altair engineers.

--

Decrement operator.

Syntax

var_name --

Operands

var_name: A scalar variable.

Example


Expression	Result
`a -- , where a = 2`	`1`

Comments

The decrement operator decreases the value of var_name by one. This operator is typically used in loop constructs.

The decrement operator is not valid when used with curve-editing functions.