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Re: Difference between x' and x.' ?
From: |
Chethan Bandi |
Subject: |
Re: Difference between x' and x.' ? |
Date: |
Tue, 9 Oct 2007 20:55:18 +0530 |
User-agent: |
KMail/1.9.5 |
On Tuesday 09 October 2007 20:11, David Bateman wrote:
> Kim Hansen wrote:
> > I can not figure out what the difference should be between x' and x.'
> >
> > Can someone give me a hint ?
> >
> > Thanks,
>
> x' and x.' are transpose for real x, x' is hermitian and x.' is
> transpose for complex x..
>
> D.
x' gives you complex conjugate transpose of a matrix where as x.' gives you
only transpose of a matrix. you can observe this only for complex matrices.
For real matrices both x' and x.' gives you same results.
octave:1> a=[1+2i 3-4i;2+3i 8-5i]
a =
1 + 2i 3 - 4i
2 + 3i 8 - 5i
octave:2> a'
ans =
1 - 2i 2 - 3i
3 + 4i 8 + 5i
octave:3> a.'
ans =
1 + 2i 2 + 3i
3 - 4i 8 - 5i
octave:4>
--
Thanks and Regards,
Chethan Bandi