http://scratch.mit.edu/feeds/getRecentUserProjects/22249 Recent Projects Feed for rof en-us Thu, 26 Nov 2009 02:39:54 GMT CakePHP Han and Andres genghisu http://scratch.mit.edu/projects/rof/18985 <img src="http://scratch.mit.edu/static/projects/rof/18985_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/18985_sm.png http://scratch.mit.edu/projects/rof/18676 <img src="http://scratch.mit.edu/static/projects/rof/18676_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/18676_sm.png http://scratch.mit.edu/projects/rof/18429 <img src="http://scratch.mit.edu/static/projects/rof/18429_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/18429_sm.png http://scratch.mit.edu/projects/rof/18082 <img src="http://scratch.mit.edu/static/projects/rof/18082_sm.png" width="148" height="111" border="1" alt="" />Epicycloid To obtain an epicycloid with n number of cusps, let r2 = r1/n the outer limit of the graph ist r1+2xr2 in order to calculate the number of turns until the pattern of the graph repeats itself: reduce the fraction of r1/r2 to lowest terms. i.e. find the greatest common divisor and divide r1 and r2 by it. Then, r2 ist the number of turns. Web: http://xahlee.org/SpecialPlaneCurves_dir/EpiHypocycloid_dir/epiHypocycloid.html http://scratch.mit.edu/static/projects/rof/18082_sm.png http://scratch.mit.edu/projects/rof/17709 <img src="http://scratch.mit.edu/static/projects/rof/17709_sm.png" width="148" height="111" border="1" alt="" />fly head curve http://scratch.mit.edu/static/projects/rof/17709_sm.png http://scratch.mit.edu/projects/rof/17253 <img src="http://scratch.mit.edu/static/projects/rof/17253_sm.png" width="148" height="111" border="1" alt="" />change a, b to get other nice curves with k you may adjust the size of the curve a=-6 and b=1 a=-4 and b=1 a=4 and b=2 Have fun! http://scratch.mit.edu/static/projects/rof/17253_sm.png http://scratch.mit.edu/projects/rof/17058 <img src="http://scratch.mit.edu/static/projects/rof/17058_sm.png" width="148" height="111" border="1" alt="" />With this version, you can change a, b and c with sliders. have fun! http://scratch.mit.edu/static/projects/rof/17058_sm.png http://scratch.mit.edu/projects/rof/17056 <img src="http://scratch.mit.edu/static/projects/rof/17056_sm.png" width="148" height="111" border="1" alt="" />change a, b and c to get other nice curves: try: a=1; b=1; c=4 a=6; b=6; c=4 http://scratch.mit.edu/static/projects/rof/17056_sm.png http://scratch.mit.edu/projects/rof/16746 <img src="http://scratch.mit.edu/static/projects/rof/16746_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/16746_sm.png http://scratch.mit.edu/projects/rof/16737 <img src="http://scratch.mit.edu/static/projects/rof/16737_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/16737_sm.png http://scratch.mit.edu/projects/rof/16701 <img src="http://scratch.mit.edu/static/projects/rof/16701_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/16701_sm.png http://scratch.mit.edu/projects/rof/16668 <img src="http://scratch.mit.edu/static/projects/rof/16668_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/16668_sm.png http://scratch.mit.edu/projects/rof/13781 <img src="http://scratch.mit.edu/static/projects/rof/13781_sm.png" width="148" height="111" border="1" alt="" /> http://scratch.mit.edu/static/projects/rof/13781_sm.png