Keywords: Splined epitrochoid.svg Created with Sage Made with Sage; code is as follows <source lang python > Five-petaled epitrochoid via splining the points Draw an epitrochoid fixed circle radius R rotating circle of radius r pen at distance d from center of rotating circle R 5 r 2 d 3 rotations R + r / r denom v step 0 2 for t in srange 0 2 pi rotations step v append R + r cos t - d cos R + r / r t R + r sin t - d sin R + r / r t x_spline spline RDF i / len v vi0 for i in range len v + 1 v00 y_spline spline RDF i / len v vi1 for i in range len v + 1 v01 show points v rgbcolor 1 0 0 pointsize 10 + parametric_plot x_spline y_spline x 0 1 thickness 0 5 figsize 4 4 ticks 2 5 2 5 xmin -10 </source> Splined_epitrochoid png 50 2012-01-29 08 20 UTC Splined_epitrochoid png dino derivative work <font color blue size 2px >Inverse</font><font color 6495ED size 2px >Hypercube</font> Vectorized Splined_epitrochoid png en English Wikipedia dino Original upload log This image is a derivative work of the following images File Splined_epitrochoid png licensed with PD-user-w 2010-07-25T20 52 50Z Aleksd 400x400 27936 Bytes <nowiki> made with SAGE; code follows Five-petaled epitrochoid via splining the points Draw an epitrochoid fixed circle radius R rotating circle of radius r pen at distance d from center of rota</nowiki> Uploaded with derivativeFX Images with Sage source code Interpolation Epitrochoid |