Comment 10 for bug 653315

good question, even my obsolete Adobe SVG viewer in IE8 renders the original file correctly.

There is indeed some numerical error occurring here (in Inkscape). I guess my point is that it is _not_ related to the difference between a Bezier curve and a true arc. If it was related to the difference between a Bezier and a true circular arc, then all renderers would respond the same way to this file. The original file contains only true circular arcs, no Bezier curves. The Inkscape renderer is quite capable of distinguishing between circles and Bezier curves, and showing the difference between them, but the error in this case is quite a bit less than the error showing up in this image.