f(x,y,z)= x^2+ 3y^2+ 5z^2 k=x^2+ 3y^2+ 5z^2 if k=0 we have a ellipsewith with origin 0,0 when k>0 family of ellipses of one sheet K<0 family of ellipses I do not know if I am doing it right or if I am describing them exactly.
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Originally Posted by andreaspohle f(x,y,z)= x^2+ 3y^2+ 5z^2 k=x^2+ 3y^2+ 5z^2 if k=0 we have a ellipsewith with origin 0,0 when k>0 family of ellipses of one sheet K<0 family of ellipses I do not know if I am doing it right or if I am describing them exactly. If , then ellipsoid's, if , just one point at the origin and nothing for .
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