File talk:Epicycloid geometry.svg

The drawing contains a small "mistake", that is the drawing of $\ell _{r}$ is correct for a sketch but not correct for an exact drawing, which require $\ell _{R}=\ell _{r}$ but in the drawing we clearly have $\ell _{R}>\ell _{r}$. To address that issue, I recreated the drawing with exact measurement (see File:Epizykloide herleitung.svg)--Kmhkmh (talk) 04:31, 23 October 2015 (UTC)