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Questions tagged [ellipsoid]

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Slicing an n-dimensional ellipsoid

NonlinearModelFit has as one of its diagnostics a parameter estimate ellipsoid. This is hard to visualize, however, if there are more than 3 parameters being ...
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Plotting cuboid in a ellipsoid

I'm having trouble to implement a plot in Mathematica. I want to plot two things at the same time. The first thing is a ellipsoid given by $\displaystyle f(x,y,z)=\frac{x^2}{a^2}+\frac{y^2}{b^2}+\...
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Plotting an ellipse given axial ratio and orientation

I have already looked at this answer but couldn't figure out how to use it in my case, particularly due to needing to include the orientation. I currently have a value for my axial ratio and a value ...
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Detecting and measuring an ellipse in a glaucoma photo? [duplicate]

I've tried the solutions given in How to find a circular object in the image glaucoma? to detect the ellipse, but the detection results are not quite what I wanted. In glaucoma we have a cup to disk ...