[CharlesW]

> The arc is represented internally by one or more cubic Bézier curves…

But that's a rendering implementation detail, no? Isn't the precision and accuracy of any digital or physical manifestation of a circle limited by implementation details and physics?

[Sharlin]

Yes, but as the article notes, there are applications where you need a circle way more precise than one approximated by just a few Bezier curves. Although you could argue that any finite precision can be achieved by simply using more Bezier curves.

[fooofw]

Yes, I agree completely.