[PLUG] Free temporary online repository question

[logical american]

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