Click on flag and watch, A simple project while awaiting inspiration for best ideas... A little faster in turbo mode
Equations of the curves in http://elepa.files.wordpress.com/2013/11/fifty-famous-curves.pdf : Nephroid p. 33 Freeth's Nephroid p. 23 Music by the Portuguese guitarist Carlos Paredes (I think there is noise in the sound with Windows XP) August 8, 2014
