function [x_gauche,x_droite] = simulation(y,beta_0,gamma_0,moyennes,ecarts_types,d)

    beta = ecarts_types(1:d-1) .* randn(d-1, 1) + moyennes(1:d-1);
%     beta = ecarts_types(1:d-1) .* randn(1, d-1) + moyennes(1:d-1)
    gamma = ecarts_types(d:2*d-2) .* randn(d-1, 1) + moyennes(d:2*d-2);
%     gamma = ecarts_types(d:2*d-2) .* randn(1, d-1) + moyennes(d:2*d-2);

    gamma_d = ecarts_types(2*d-1) * randn() + moyennes(2*d-1);
    beta_d = gamma_d;

    x_gauche = bezier(beta_0, beta, beta_d, y);
    x_droite = bezier(gamma_0, gamma, gamma_d, y);

%     close all;
%     pause

end