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 Author Comment/Response George Marrash 05/19/97 7:09pm Here is what i did and I to got only the graph for positive values of x, eventhough mathcad plotted the function with no problem In[1]:= \!\(Plot[x\^\(1\/3\), {x, \(-10\), 10}]\) \!\(Plot::''plnr'' \( : \ \) ''\!\(x\^\(1/3\)\) is not a machine-size real number at \!\(x\) = \ \!\(-9.99999916666666699`\).''\) \!\(Plot::''plnr'' \( : \ \) ''\!\(x\^\(1/3\)\) is not a machine-size real number at \!\(x\) = \ \!\(-9.18866016854168421`\).''\) \!\(Plot::''plnr'' \( : \ \) ''\!\(x\^\(1/3\)\) is not a machine-size real number at \!\(x\) = \ \!\(-8.30382400281252586`\).''\) General::''stop'': ''Further output of \!\(Plot :: \''plnr\''\) will be suppressed during this \ calculation.'' this is strange Reply to message #359 from Ben Hawkey: > I just know this has a really simple answer, but it has been bugging me that I have been unable to get a real result for -ve values of x. I know they exist, my \$50 calculator tells me they exist. and so does my 1st year calc book, but I'll be damned if I can get Mathematica to give me anything but complex results. > So if anyone can answer this easy question for me I'd be very happy :) > > Thanks in advance > Ben Hawkey > URL: ,
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