Hello Shuhua Zhang,I think that this is not octaveforge related issue. It is probably an octave bug ! I think you should report it to bug-oct...@octave.org (follow bug reporting guidelines in http://www.gnu.org/software/octave/bugs.html)
You may also ask for some response from octave-maintain...@octave.org. Regards Nitzan Arazi >[OctDev] incorrect complex matrix multiplication results in Octave 3.2.2 >From: Shuhua Zhang <shuhua.zh...@gm...> - 2009-08-16 03:33 > >Hi, > >I built octave 3.2.2 on my x86_64 desktop and x86 notebook a few weeks >ago. >They passed all the tests. > >But I've just noticed some weird complex matrix multiplication results >on both >the machines: >octave:48> [1 0]*[i 0]' >ans = 0 - 1i %% correct >octave:49> [1 i]*[i 0]' >ans = 0 + 1i %% incorrect, 0+1i=[i >0]*[1 i]' > >The problem is that for nx1 row vectors a and b both with non-zero >imaginary parts, >a*b' turns out to be b*a', which is the conjugate of the correct result. >If either a or b >are real, the result will be correct. > >I also checked out Octave 3.0.3, it didn't have this problem. > >So, is it a run time configuration problem, a build configuration >problem, or a bug? >Regards, >Shuhua Zhang, Oct. 16, 2009
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