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Student Support Forum: 'Plotting Ellipse' topicStudent Support Forum > General > "Plotting Ellipse"

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Author Comment/Response
Bruce Colletti
06/14/99 05:14am

When plotting an ellipse (described below), the message returns

''ParametricPlot::pptr: Statistics`Common`MultivariateCommonPrivate (etc.) does not evaluate to a pair of real numbers at Statistics`Common`MultivariateCommon`Private`theta=-3.14159.''

The arguments to Ellipsoid(a,b,c) seem okay (a and b are lists with 2 positve reals, c contains eigennormals), so what causes the above message? My code is:

<<Statistics`MultidescriptiveStatistics`
<<LinearAlgebra`Orthogonalization`

...
Q = Ellipsoid[a,b,c]
Show[Graphics[Q],Frame->True]

Thanks.

Bruce

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