A = sin(linspace(0,50, 1000));   % A
B = sin(linspace(0,37, 1000)+5); % B
figure; 
subplot(2,1,1); plot(A);         % plot A
subplot(2,1,2); plot(B, 'r');    % plot B

M1 = A - 2*B;                  % mixing 1
M2 = 1.73*A+3.41*B;            % mixing 2
figure;
subplot(2,1,1); plot(M1);      % plot mixing 1
subplot(2,1,2); plot(M2, 'r'); % plot mixing 2

figure;
c = fastica([M1;M2]);              % compute and plot unminxing using fastICA	
subplot(1,2,1); plot(c(1,:));
subplot(1,2,2); plot(c(2,:));