There is still more than one week left to participate in the ongoing SURFER picture competition, so start being creative and upload your images! The competition, that started already on May 18, 2012 will run until April 28, 2013. Then a judging panel will decide about the winners of the competition.
Algebraic surfaces are produced by simple equations in three spatial coordinates x,y,z. All points which satisfy...Devamını oku