.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gyexamples/plot_simple_example.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_gyexamples_plot_simple_example.py>`
        to download the full example code

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gyexamples_plot_simple_example.py:


.. _l-example-one:

Quelques examples simples
=========================

.. contents::
    :local:

Case 1
++++++

Que calcule le programme suivant ?

.. GENERATED FROM PYTHON SOURCE LINES 18-30

.. code-block:: default

    res = [[1]]
    for i in range(1, 10):
        row = [1]
        for j in range(1, i):
            n = sum(res[-1][j - 1: j + 1])
            row.append(n)
        row.append(1)
        res.append(row)


    print(res)





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

 .. code-block:: none

    [[1], [1, 1], [1, 2, 1], [1, 3, 3, 1], [1, 4, 6, 4, 1], [1, 5, 10, 10, 5, 1], [1, 6, 15, 20, 15, 6, 1], [1, 7, 21, 35, 35, 21, 7, 1], [1, 8, 28, 56, 70, 56, 28, 8, 1], [1, 9, 36, 84, 126, 126, 84, 36, 9, 1]]




.. GENERATED FROM PYTHON SOURCE LINES 31-32

Un autre affichage peut peut-être aider.

.. GENERATED FROM PYTHON SOURCE LINES 32-38

.. code-block:: default



    import pprint
    pprint.pprint(res)






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

 .. code-block:: none

    [[1],
     [1, 1],
     [1, 2, 1],
     [1, 3, 3, 1],
     [1, 4, 6, 4, 1],
     [1, 5, 10, 10, 5, 1],
     [1, 6, 15, 20, 15, 6, 1],
     [1, 7, 21, 35, 35, 21, 7, 1],
     [1, 8, 28, 56, 70, 56, 28, 8, 1],
     [1, 9, 36, 84, 126, 126, 84, 36, 9, 1]]




.. GENERATED FROM PYTHON SOURCE LINES 39-41

Case 2
++++++

.. GENERATED FROM PYTHON SOURCE LINES 41-66

.. code-block:: default

    import cProfile


    nombres = [9, 7, 5, 4, 6, 7, 3, 1, 7, 8]


    def moyenne(ens):
        return sum(ens) / len(ens)


    def ecarttype(ens):
        var = [(n - moyenne(ens)) ** 2 for n in ens]
        return (sum(var) / len(var)) ** 0.5


    print(moyenne(nombres))
    print(ecarttype(nombres))

    with cProfile.Profile() as pr:
        for n in range(100000):
            ecarttype(nombres)

    pr.print_stats()






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

 .. code-block:: none

    5.7
    2.3259406699226015
             3400002 function calls in 5.596 seconds

       Ordered by: standard name

       ncalls  tottime  percall  cumtime  percall filename:lineno(function)
            1    0.000    0.000    0.000    0.000 cProfile.py:117(__exit__)
      1000000    1.412    0.000    2.829    0.000 plot_simple_example.py:47(moyenne)
       100000    0.547    0.000    5.596    0.000 plot_simple_example.py:51(ecarttype)
       100000    2.028    0.000    4.857    0.000 plot_simple_example.py:52(<listcomp>)
      1100000    0.395    0.000    0.395    0.000 {built-in method builtins.len}
      1100000    1.214    0.000    1.214    0.000 {built-in method builtins.sum}
            1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}






.. GENERATED FROM PYTHON SOURCE LINES 67-69

Case 3
++++++

.. GENERATED FROM PYTHON SOURCE LINES 69-81

.. code-block:: default


    def bizarre(ensemble):
        # premier zero
        ensemble.append(0)
        for i in range(len(ensemble)):
            if ensemble[i] == 0:
                return i


    res = [1, 4, 5]
    print("bizarre=", bizarre(res))
    print("res=", res)




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

 .. code-block:: none

    bizarre= 3
    res= [1, 4, 5, 0]





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

   **Total running time of the script:** ( 0 minutes  5.952 seconds)


.. _sphx_glr_download_gyexamples_plot_simple_example.py:

.. only:: html

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




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

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

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

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


.. only:: html

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

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