**TI83F*

Created by TI-Smartview CE 5.4.0.1858     í  Ü C2EX158   Ü Ú PYCD02_Indice_Tlespe_ex158.py def sont_coplan(x1, y1, z1, x2, y2, z2, x3, y3, z3):
    d = ..............
    if .............. :
        return ..............
    else:
        return ..............
    
    6