Different values in Matlab
<p>I'm trying to understand the cosinor analysis in Matlab.
<a href="http://www.mathworks.com/matlabcentral/fileexchange/20329-cosinor-analysis/content/html/cosinor.html" rel="nofollow">http://www.mathworks.com/matlabcentral/fileexchange/20329-cosinor-analysis/content/html/cosinor.html</a> </p>

<p>I'm not understanding the find() function, actually this line: IND = find(real(beta_s1) ~= real(beta_s2));</p>

<p>Can someone tell me why Matlab considers these values equal?</p>

<p>4.4115 + 2.0221i</p>

<p>4.4115 - 2.0221i</p>

<p>Thanks</p>