%% Intersection of Two Vectors and Their Indices
% Create two vectors with values in common.

A = [7 1 7 7 4]; 
B = [7 0 4 4 0];

%
% Find the values common to both A and B, as well as the index vectors ia and ib, such that C = A(ia) and C = B(ib).

[C,ia,ib] = intersect(A,B)

% Copyright 2012 The MathWorks, Inc.