.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        Click :ref:`here <sphx_glr_download_auto_functional_modeling_vectorial_functions_plot_composed_function.py>`     to download the full example code
    .. rst-class:: sphx-glr-example-title

    .. _sphx_glr_auto_functional_modeling_vectorial_functions_plot_composed_function.py:


Create a composed function
==========================

In this example we are going to create a composed function :math:`f\circ g`



.. code-block:: default

    from __future__ import print_function
    import openturns as ot
    import openturns.viewer as viewer
    from matplotlib import pylab as plt
    import math as m
    ot.Log.Show(ot.Log.NONE)








assume f, g functions


.. code-block:: default

    g = ot.SymbolicFunction(['x1', 'x2'],
                            ['x1 + x2','3 * x1 * x2'])
    f = ot.SymbolicFunction(['x1', 'x2'], ['2 * x1 - x2'])








create the composed function


.. code-block:: default

    function = ot.ComposedFunction(f, g)








evaluate the function


.. code-block:: default

    x = [3.0, 4.0]
    y = function(x)
    print('x=', x, 'y=', y)




.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none

    x= [3.0, 4.0] y= [-22]





.. rst-class:: sphx-glr-timing

   **Total running time of the script:** ( 0 minutes  0.002 seconds)


.. _sphx_glr_download_auto_functional_modeling_vectorial_functions_plot_composed_function.py:


.. only :: html

 .. container:: sphx-glr-footer
    :class: sphx-glr-footer-example



  .. container:: sphx-glr-download sphx-glr-download-python

     :download:`Download Python source code: plot_composed_function.py <plot_composed_function.py>`



  .. container:: sphx-glr-download sphx-glr-download-jupyter

     :download:`Download Jupyter notebook: plot_composed_function.ipynb <plot_composed_function.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_