#const a=1; c=1.63299;
{a} {a} {c} {90} {90} {120}
1 0 0
0 1 0
0 0 1
#const c="c";
{1/3} {2/3} {1/4} {c}
{2/3} {1/3} {3/4} {c}
#const a="a";
{0} {0} {0} {a}
{0} {0} {1/2} {a}