Examples
========


Curve representing a complex function
-----------------------------------------

fc = DEFI_FONCTION (NOM_PARA =' INST ', NOM_RESU ='DX',

VALE_C =( 0., 0., 0., 0., 0., 1., 2., 3. ,

2., 3., 4., 4., 4., 5. ,

4., 5., 6., 5., 5., 5., 5., 7.),)

IMPR_FONCTION (

UNITE = 24,

FORMAT = 'XMGRACE',

PILOTE = 'POSTSCRIPT',

LEGENDE_X = 'Time (s) ',

LEGENDE_Y = 'DX (mm) ',

COURBE = (

_F (FONCTION = fc,

PARTIE = 'REEL',

COULEUR = 4,

STYLE = 2,

MARQUEUR = 5,

LEGENDE = 'real game',),

_F (FONCTION = fc,

PARTIE = 'IMAG',

COULEUR = 2,

STYLE = 5,

MARQUEUR = 8,

LEGENDE = 'imaginary part',),

),

TITRE = "Plot of a complex function",

)


.. image:: images/100000000000034A00000253827E13130474C335.jpg
    :width: 4.9992in
    :height: 3.5327in


.. _RefImage_100000000000034A00000253827E13130474C335.jpg:


Parametric curve
-------------------

lt = DEFI_LIST_REEL (DEBUT = 0., INTERVALLE =_F (JUSQU_A =10., PAS =0.01),)

fx = FORMULE (NOM_PARA ='t',

VALE = "2. *cos (t) - cos (2.*t) "",)

CardioX= CALC_FONC_INTERP (

FONCTION = fx,

LIST_PARA = lt,)

fy = FORMULE (NOM_PARA ='t',

VALE = "2. *sin (t) - sin (2.*t) "",)

CardioY= CALC_FONC_INTERP (

FONCTION = fy,

LIST_PARA = lt,)

IMPR_FONCTION (

UNITE = 27,

FORMAT = 'XMGRACE',

TITRE = 'Cardioid',

COURBE = (

_F (FONC_X = CardioX,

FONC_Y = CardioY,),

),

)

We thus obtain a file that can be viewed in xmgrace:


.. image:: images/100000000000034A000002537A6BAED0619AA8D8.jpg
    :width: 4.9992in
    :height: 3.5327in


.. _RefImage_100000000000034A000002537A6BAED0619AA8D8.jpg:

Additional formatting in xmgrace: *Plot/Graph apparance* menu, type*fixed* (square grid), and remove the legend by unchecking the*Display legend* box.


Tablecloth and smooth tablecloth
---------------------

A next.png file is thus obtained.


.. image:: images/1000020100000DA7000015181200B58BE5359419.png
    :width: 5.5138in
    :height: 8.5189in


.. _RefImage_1000020100000DA7000015181200B58BE5359419.png: