.. highlightlang:: us

.. index:: Tools=>Formula Configuration

.. _toolsformula-configuration:
.. _tools-formula-configuration:

Tools=>Formula Configuration
----------------------------

Some settings for to control the calculation or formula channels can be set in 
this dialog box. See :ref:`formula-interpreter-1---introduction`.

.. image:: S:/uniplot-obj/images/ToolsFormulaConfiguration-en.*

.. us.dlgitem

**Activate Formula Calculation**
   If this option is set the formula calculator is active. Example: If you press
   F9 in the data browser formulas will be calculated. If you edit an NC file
   formulas will be recalculated when the browser is closed.

.. us.dlgitem

**Calculate Formulas during Import**
   If this option is set formulas are calculated during the import process.

.. us.dlgitem

**Do not overwrite imported channels with formula channels**
   If this option is set only formulas are calculated which are not already
   present in the data file.

.. us.dlgitem

**Search Path for Formula Interpreter Functions**
   The search path field can contain more than one path. UniPlot will load all 
   formula files :file:`.ic` found in each specified path. Separate paths with a 
   semi-colon. New formulas will be added to the last specified directory.

.. us.dlgitem

**Create a backup file before a formula file is overwritten**
   If this option is set, a copy of a formula file with the extension .bak is
   saved in the same directory before the formula file is modified.

.. us.dlgitem

**Units Table**
   To select a unit table click on the ``...`` button. The default table is an
   Excel file in the installation directory of UniPlot. The file name is 
   :file:`template\\units.xlsx`. See also :ref:`units`. 

.. seealso::
   :ref:`formula-interpreter-1---introduction`,
   :ref:`FE_SetFormulaDirectory`,
   :ref:`FE_UpdateNCFile`,
   :ref:`tools`

:sub:`id-692240`