I would like to find out which functions retain the same structure when they are scaled. Particularly I am interested in projections.(adsbygoogle = window.adsbygoogle || []).push({});

For example, a parabola 3d space viewed at another angle can still be represented by at^2 + bt+c. A circle however can not (ellipse)

I am guessing conic sections have this property? Are there any other functions that have this property, and what terms are associated with this property?

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# Functions homo/isomorphic to change in scale

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