GraphingCalculator 3.2;
SignificantDigits 14;
FontSizes 12 9 9;
BackgroundColor 192 192 192;
V -1 1;
3D.Axes 0;
3D.Depth 0.8665454871485726;
3D.View -0.6822464912539148 0.7117849582309331 0.1670386135238015 -0.6916647480883239 -0.7023968855918303 0.1680431235215012 0.2369379695694506 -0.0008878891420714104 0.9715243744905434;
3D.Rotation 1 0 0 0 1 0 0 0 1;
Color 17;
Expr z^2=x^2/a^2+y^2/b^2;
Color 6;
Grain 1;
Expr vector(x,y,z)=vector(v*cos(2*pi*u),0.5*v*sin(2*pi*u),v);