Re: ax=0

[weino001]

That seems to be exactly the script i was searching for ..

Thank you very much!

Oliver

Quoting grumpy steve <address@hidden>:

> >Quoting weino001 at students dot uni-mainz dot de:
> >the right term is of course "underdetermined linear equations" - sorry
> >>
> >> Is there a script available for solving undetermined linear equation ax =
> 0
> >> (more equations than variables, i need all solutions)?  If not, what is
> the
> >> best way to solve it with octave.
> >>
> >> Thanks for any help
> >> Oliver
> >>
>
> What you need to find is the null space of a.  Octave provides a function to
> do exactly that:
>
>   NullSpace = null(a)
>
> Now, any x that can be expressed as a linear combination of the columns of
> NullSpace is a solution to a x = 0
>
> If NullSpace is an empty matrix, then this implies that the only solution is
> x=0.
>
> Steve
>
>




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