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Elliptical spheres are neither spheres nor elliptic. Elliptical spheres are complex vectors  such that  and  ,  ,  are elliptic functions. A possible parametrization of these vectors is given through Neville theta functions as In this Demonstration,  runs over part of the complex plane and  and  are complex parameters. The graphic displays variable relative fractions of the real and imaginary parts of  ,  , and  . |
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