On 3/23/2012 2:38 PM, Russell Senior wrote: > I am interested to know what is in the tables that they are 2 gig. > Triangles being fairly simple shapes, I am not sure what I could come > up with about them that would fill so much space. How about 54+ million of them, and they have a special requirement that they be primitive Heron triangles? The 5,4,3 triangle works, because the sides are relatively prime to each other. The 6,5,5 triangle also works. But the 10,8,6 triangle won't work. Neither do most triangles, like the 2,3,4 triangle, since the area of that triangle is not rational. Heron triangles have rational area.
See http://www.maa.org/mathland/mathtrek_07_28_03.html about tetrahedrons. Randall _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
