Do not put more than 65 characters per line of formula !
"(cos(x)*cos(y))^3"
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"(sin(x)*cos(y))^3"
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"(sin(y))^3"
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"Astroidal Ellipsoid"
"Cette surface peut etre trace avec {x,y,z} dans [-1,1]^3"
"avec x dans [0,PI] et y [0,2*PI]"
"Coordonnees parametrees 3D rectangulaires"
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_____________________ Optionnal ______________________
"0 PI"
"0 2*PI"
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"-2 2"
"-2 2"
"-2 2"
"44 0 3"
