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RE: Difference between x' and x.' ?


From: Schirmacher, Rolf
Subject: RE: Difference between x' and x.' ?
Date: Tue, 9 Oct 2007 17:21:59 +0200

x' is the hermitian (i.e. complex conjugate transpose) while x.' is the
transpose.

See for some simple scalar:

octave.exe> x=1+2i
x =  1 + 2i
octave.exe> x'
ans =  1 - 2i
octave.exe> x.'
ans =  1 + 2i

For real valued x, there is no difference, for complex valued x, the
difference is important.

Hope that helps,

Rolf

> -----Original Message-----
> From: Kim Hansen [mailto:address@hidden
> Sent: Tuesday, October 09, 2007 4:25 PM
> To: Octave help
> Subject: Difference between x' and x.' ?
> 
> 
> I can not figure out what the difference should be between x' and x.'
> 
> Can someone give me a hint ?
> 
> Thanks,
> -- 
> Kim Hansen
> Vadgårdsvej 3, 2.tv
> 2860 Søborg
> Fastnet: 3956 2437  --  Mobil: 3091 2437
> 
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