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: crossFlowDrag.m
    path of file: ./repos/MSS/GNC
    
    the code of the file until where you have to start completion: function tau_crossflow = crossFlowDrag(L,B,T,nu_r)
% tau_crossflow = crossFlowDrag(L,B,T,nu_r) computes the cross-flow drag 
% integrals for a marine craft using strip theory. Application:
%
%  M d/dt nu_r + C(nu_r)*nu_r + D*nu_r + g(eta) = tau + tau_crossflow
%
% Inputs: L:  length
%         B:  beam
%         T:  draft 

    
function tau_crossflow = crossFlowDrag(L,B,T,nu_r)
% tau_crossflow = crossFlowDrag(L,B,T,nu_r) computes the cross-flow drag 
% integrals for a marine craft using strip theory. Application:
%
%  M d/dt nu_r + C(nu_r)*nu_r + D*nu_r + g(eta) = tau + tau_crossflow
%
% Inputs: L:  length
%         B:  beam
%         T:  draft 
%         nu_r = [u-u_c, v-v_c, w-w_c, p, q, r]': relative velocity vector
%
% Output: tau_crossflow = [0 Yh 0 0 0 Nh]:  cross-flow drag in sway and yaw
%
% Author:     Thor I. Fossen 
% Date:       25 Apr 2021, Horizontal-plane drag of ships
% Revisions:  30 Jan 2021, Extend