On Sat, Sep 21, 2002 at 07:17:09PM +0200, Pascal Francq wrote:
> > > the corresponding float menu in LyX, the algorithm numerotation is global
> > > (1,2,3, ...) rather chapter specific (1.1,1.2,2.1,....).
> > > Any ideas?
> >
> > Add to the preamble:
> >
> > \renewcommand{\thealgorithm}{\thechapter.\arabic{algorithm}}
> > \@addtoreset{algorithm}{chapter}
> 
> It works, but there problems when using with the hyperref package. On the LyX 
> website, it is explain to add in the preamble something like:
>  \newcommand{\theHalgorithm}{\thechapter.\arabic{algorithm}}
                               ^^should be \theHchapter

> But, when doing this, I have the linear numerotation and if I use your system
> it works but I have got an error. I Suppose there must be some 'trick' to 
> combine both?

Just use them both:

\renewcommand{\thealgorithm}{\thechapter.\arabic{algorithm}} 
\@addtoreset{algorithm}{chapter}
\newcommand{\theHalgorithm}{\theHchapter.\arabic{algorithm}} 

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