tempest/examples/dft/symmetry_param.dft

param x;
param y;
toplevel "A";
"A" and "B" "B'";
"B" and "C" "D";
"B'" and "C'" "D'";
"C" lambda=x dorm=0;
"D" lambda=y dorm=0;
"C'" lambda=x dorm=0;
"D'" lambda=y dorm=0;