.. _sphx_glr_gallery_text_labels_and_annotations_mathtext_demo.py:


=============
Mathtext Demo
=============

Use matplotlib's internal LaTeX parser and layout engine.  For true
latex rendering, see the text.usetex option




.. image:: /gallery/text_labels_and_annotations/images/sphx_glr_mathtext_demo_001.png
    :align: center





.. code-block:: python

    import numpy as np
    from matplotlib.pyplot import figure, show

    fig = figure()
    fig.subplots_adjust(bottom=0.2)

    ax = fig.add_subplot(111)
    ax.plot([1, 2, 3], 'r')
    x = np.arange(0.0, 3.0, 0.1)

    ax.grid(True)
    ax.set_xlabel(r'$\Delta_i^j$', fontsize=20)
    ax.set_ylabel(r'$\Delta_{i+1}^j$', fontsize=20)
    tex = r'$\mathcal{R}\prod_{i=\alpha_{i+1}}^\infty a_i\sin(2 \pi f x_i)$'

    ax.text(1, 1.6, tex, fontsize=20, va='bottom')

    ax.legend([r"$\sqrt{x^2}$"])

    ax.set_title(r'$\Delta_i^j \hspace{0.4} \mathrm{versus} \hspace{0.4} '
                 r'\Delta_{i+1}^j$', fontsize=20)

    show()

**Total running time of the script:** ( 0 minutes  0.019 seconds)



.. only :: html

 .. container:: sphx-glr-footer


  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

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