Re: Octave/C++ matrix Inv() comparison

[Jean-François LE BAS]

thank you i'll give a try to Armadillo

regards,

Jeff

Le 17/07/2013 04:05, mtall a écrit :
> You may wish to use the Armadillo library, which provides an inv() function
> in C++, instead of writing your own.  Have a look at:
> http://arma.sourceforge.net/docs.html#inv
>
> Armadillo uses LAPACK for inv(), so it will provide the same answer as
> Octave. To see how inv() is implemented, have a look at Armadillo's source.
> The related functions are in the "include/armadillo_bits/auxlib_meat.hpp"
> file, within the Armadillo archive, which you can get from:
> http://arma.sourceforge.net/download.html
>
>
>
> ionone wrote
> > Also to do it simpler, here are the numbers in a 20x20 matrix in Octave
> > and in C++
> >
> > the funny thing is that when i take the inverse in octave, ihave the exact
> > answer, but if i take the inverse with Lapack i have something totally
> > different...Not even close as before. Dunno...
>
>
>
>
> --
> View this message in context: 
> http://octave.1599824.n4.nabble.com/Octave-C-matrix-Inv-comparison-tp4655291p4655747.html
> Sent from the Octave - Maintainers mailing list archive at Nabble.com.