You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: unstAirfoilAeroFast.m
    path of file: ./repos/LADAC/aerodynamics/airfoil/unsteady
    
    the code of the file until where you have to start completion: function [c_L_c,c_m_c,c_L_nc,c_m_nc,alpha_E,x_dt,A,B_alpha,B_q] = unstAirfoilAeroFast( ...
    V, Ma, c, C_L_alpha, x_ac, x, alpha, q, alpha_inf ) %#codegen

    
function [c_L_c,c_m_c,c_L_nc,c_m_nc,alpha_E,x_dt,A,B_alpha,B_q] = unstAirfoilAeroFast( ...
    V, Ma, c, C_L_alpha, x_ac, x, alpha, q, alpha_inf ) %#codegen
% unstAirfoilAeroFast computes the outputs and the state derivative of the
%   unsteady transsonic airfoil behavior according to [1]. The model has 8
%   states, two inputs and five outputs.
%   Important note:
%   The state vector is defined differently than in [1], because otherwise
%   the airspeed should not be varied! Transformation: x_better = A * x
%   Thanks to the transformation the amplitude of the state vector does not
%   really depend