.. highlightlang:: us

.. index:: symbols

.. _symbols:

symbols
=======

.. us.tag  symbols ENGLISH Programming.Symboltable Changed410

:ref:`symbols` returns the names and the sizes of
variables and functions.

.. function::  svSymbols = symbols()
    svSymbols = symbols(nType)
    <svSymbols, svTypeSize> = symbols()
    <svSymbols, svTypeSize> = symbols(nType)

.. us.return

**Return Value**

*svSymbols* is a string vector with the names of
variables and functions. *svTypeSize* is a string matrix
with four columns:

.. list-table::
   :header-rows: 1

   * - Value
     - Meaning
   * - svTypeSize[;1]
     - The first column contains the type of the variables. The type is one of
       four values: "Real", "Complex", "String", "Function".
   * - svTypeSize[;2]
     - The second column contains the number of columns.
   * - svTypeSize[;3]
     - The third column contains the number of rows.
   * - svTypeSize[;4]
     - The fourth column contains the size of the variables in bytes.

.. us.params

**Parameters**

.. uparam:: nType

   *nType* is a combination of four values (see example):

.. list-table::
   :header-rows: 1

   * - Value
     - Meaning
   * - 1
     - Real
   * - 2
     - Complex
   * - 4
     - String
   * - 8
     - User-Function (Functions written in UniScript)
   * - 16
     - Built-In-Function
   * - 32
     - Functions which were registered with :ref:`RegisterFunction`
   * - 64
     - COM-Object
   * - 128
     - Variant
   * - 256
     - UniScript Objekts.
   * - 512
     - Namen der geladenen DLLs.

.. us.example

**Example**

The following call prints the names of all variables.

::

   symbols(1|2|4)

.. us.history

**History**

.. list-table::
   :header-rows: 1

   * - Version
     - Description
   * - R2013.6
     - *nType* == 512, zur Ausgabe der geladenen DLLs.

.. seealso::
   :ref:`overview-programming`,
   :ref:`what`,
   :ref:`who`,
   :ref:`whos`

:sub:`id-1678059`