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Re: Only real data


You could do something like

Select[data1, (ComplexExpand[Im[#]]===0)&]

Heike


On 15 Oct 2011, at 12:03, J=F6rg Schr=F6der wrote:

> Hello,
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>
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> I have a problem to exclude complex solutions. I tried
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> data1={2,3/4,1.3,=E4}
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> {2,3/4,1.3,=E4}
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> Cases[data1, Except[_Complex]]
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> {2,3/4,1.3}
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> and got, what I expected. But when I have data like
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> {0,0,-I Sqrt[3],I Sqrt[3]}
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> The above doesn't work. Is this due to a different Head? Is there an easy
> way to filter the non-complex data?
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>
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> Thanks in advance
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> Greetings
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>
> Joerg
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>
>
> ################
>
> Dr. J=F6rg Schr=F6der
>
> Bremen, Germany
>




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