alpha_bap.dat: coefficients of the Bianular Problem.
alpha_tccp.dat: coefficients of the Tricircular Coherent Problem.

Usage of the coefficients in order to evaluate the auxiliary 
quasi-periodic functions alpha_k at (theta_1,theta_2) (see Paper):

alpha_k(theta_1,theta_2) = 
        Sum_{k1,k2} ( alpha[k-1][k1][k2]*cos(k1*theta_1 + k2*theta_2) 
                    + alpha_[k-1][k1][k2]*cos(k1*theta_1 - k2*theta_2) );
   for k=1,3,4,6,7,9.

alpha_k(theta_1,theta_2) = 
        Sum_{k1,k2} ( alpha[k-1][k1][k2]*sin(k1*theta_1 + k2*theta_2) 
                    + alpha_[k-1][k1][k2]*sin(k1*theta_1 - k2*theta_2) );
   for k=2,5,8,10.
