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    Manuel,<br>
     Try the following: x = y**(1./3.)<br>
    Regards,<br>
     David<br>
     <br>
    <br>
    <div class="moz-cite-prefix">On 6/3/2013 08:03, Manuel da Conceição
      Nunes wrote:<br>
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        <p class="MsoNormal">Hi,<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal"><span lang="EN-GB">Does someone know how to
            raise a negative number to the value “1/3 “.<o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="EN-GB">If 1/3 is rounded to
            0.33, the solution is a complex number but if 1/3 is not
            rounded and understood like the cube root then the solution
            is a real number.<o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span lang="EN-GB">Thank you in advance.<o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
        <p class="MsoNormal"><b><span
              style="font-size:13.5pt;font-family:"Arial
              Narrow","sans-serif";color:gray" lang="FR">MATRI<i>ciel</i></span></b><b><span
              style="font-family:"Arial
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              lang="FR">
            </span></b><b><span style="font-family:"Arial
              Narrow","sans-serif";color:gray" lang="FR">sa</span></b><span
            style="font-size:12.0pt;font-family:"Arial
            Narrow","sans-serif";color:gray" lang="FR"><o:p></o:p></span></p>
        <p class="MsoNormal"><b><span
              style="font-size:10.0pt;font-family:"Arial
              Narrow","sans-serif";color:gray" lang="FR">Manuel
              da Conceição Nunes</span></b><b><span
              style="font-size:10.0pt;font-family:"Arial
              Narrow","sans-serif";color:black" lang="FR">
            </span></b><b><span
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            </span></b><span
            style="font-size:8.0pt;font-family:"Arial
            Narrow","sans-serif";color:gray" lang="FR">Place
            de l'Université, 25 Etage 2 à 1348 Louvain-la-Neuve<br>
            Tél : 010/24 15 70 - Fax : 010/24 15 60 </span><b><span
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    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
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Thermal Energy Systems Specialists, LLC
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