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: curveCMoment.m
    path of file: ./repos/matGeom/matGeom/polygons2d
    
    the code of the file until where you have to start completion: function m = curveCMoment(curve, p, q)
%CURVECMOMENT  Compute centered inertia moment of a 2D curve.
%   M = curveCMoment(CURVE, P, Q)
%
%   Example
%   curveCMoment

    
function m = curveCMoment(curve, p, q)
%CURVECMOMENT  Compute centered inertia moment of a 2D curve.
%   M = curveCMoment(CURVE, P, Q)
%
%   Example
%   curveCMoment
%
%   See also 
%   polygons2d, curveMoment, curveCSMoment
%
%   Reference
%   Based on ideas and references in:
%   "Affine curve moment invariants for shape recognition"
%   Dongmin Zhao and Jie Chen
%   Pattern Recognition, 1997, vol. 30, pp. 865-901
%

% ------
% Author: David Legland
% E-mail: david.legland@inrae.fr
% Created: 2009-03-25, using Matlab 7.7.0.471 (R2008b)
% Copyright 2009-2023 INRA - Cepia Software Platform

% compute curve centroid
centroid = polylineCentroid(curve);

% coordinate of vertices
px  = curve(:,1)-centroid(1);
py  = curve(:,2)-centroid(2);

% compute centroids of line segments
cx  = (px(1:end