"Symmetric":
f_x = 3.0
f_y = 2.0
a_x = 0.5
a_y = 0.5
Gamma_x = 1.0
Gamma_y = 1.0

"Asymmetric":
f_x = 3.0
f_y = 2.0
a_x = 0.9
a_y = 0.0
Gamma_x = 1.0
Gamma_y = 1.0