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Ellipsoid[{x1, ..., xp}, {r1, ..., rp}]
represents a p-dimensional ellipsoid centered at the point {x1, ..., xp} with semi-axis radii ri aligned with the coordinate axes.
Ellipsoid[{x1, ..., xp}, {r1, ..., rp}, {d1, ..., dp}]
represents a p-dimensional ellipsoid with semi-axis radii ri aligned with the direction di.
  • Two-dimensional Ellipsoid objects can be plotted using Graphics.
  • If the direction matrix {d1, ..., dp} is a permutation of the identity matrix, the direction matrix is automatically dropped, reordering the radii if necessary.