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Only real data


Hello,



I have a problem to exclude complex solutions. I tried



data1={2,3/4,1.3,=E4}



{2,3/4,1.3,=E4}



Cases[data1, Except[_Complex]]



{2,3/4,1.3}



and got, what I expected. But when I have data like



{0,0,-I Sqrt[3],I Sqrt[3]}



The above doesn't work. Is this due to a different Head? Is there an easy
way to filter the non-complex data?



Thanks in advance



Greetings



Joerg



################

Dr. J=F6rg Schr=F6der

Bremen, Germany



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