[trealira]

I'm not who you replied to, but the reason circles are ellipses is because the definition of a circle is equivalent to the case of an ellipse where both foci have the same x, y coordinates. You can read about all the definitions of an ellipse on Wikipedia.

https://en.wikipedia.org/wiki/Ellipse

Functionally, they might not be the same if you're programming them. For example, if you have a circle class with members detailing its center and its radius, it might be more efficient to draw an instance of it than an instance of an ellipse class that has two foci members that just happen to have the same values.

[DiscourseFan]

I was just wondering about this the other day, it turns out Gödel actually got really into phenomenology later in his life...

https://plato.stanford.edu/entries/goedel/goedel-phenomenolo...

Also, that definition of a circle as an ellipse via locus points (which you mentioned) still requires defining ellipses by an imaginary, ideal circle--even if transcendental (and I've mentioned elsewhere, the circle never appears). The circle that appears is always already an ellipse, empirically, so in pure mathematical terms as I've said the ellipse is actually absolutely different from the circle, which always exceeds it. In order for the circle and ellipse to be set in relation one must be forced to be analytically composed under the other.

Edit: Its clear that phenomenology was the most important philosophical influence on the modern theory of computation, but its curious to me that those that study pure math and physics haven't, for the most part, realized that yet, even as they employ computers to do so much of their work.

[trealira]

> Also, that definition of a circle as an ellipse via locus points (which you mentioned) still requires defining ellipses by an imaginary, ideal circle--even if transcendental (and I've mentioned elsewhere, the circle never appears).

How so? I don't understand. It seems like the opposite to me: because a circle can be defined as a special case of an ellipse, then a circle is defined in terms of ellipses, not the other way around. The definition of an ellipse is a generalization of the definition of a circle.

[DiscourseFan]

Its quite a difficult problem...but also one I am actually currently working on, so I should probably put some effort into thinking about it. Give me some time and I'll get back to you. If only there was some way to do private messages on here.