#31 mathMod crash with the "implicit_leminescape" example

[Abderrahman Taha]

    {"Param3D":

    {
    "Description":["This is a Description"],
    "Name":["Implicit_Lemniscape"],
    "Fx":["cos(v)*sqrt(abs(sin(2*u)))*cos(u)"],
    "Fy":["cos(v)*sqrt(abs(sin(2*u)))*sin(u)"],
    "Fz":["x^2 - y^2 + 2*x*y*(tan(v)^2)"],  
    "Umin":["0"] , "Umax":[" pi"],
    "Vmin":["0"] , "Vmax":[" pi"]
    }}

the crash comes from the variable "x" and "y" in: "Fz":["x^2 - y^2 + 2xy*(tan(v)^2)"]

[Abderrahman Taha]

done