Saturday, April 26, 2008

LaTeX: hyperref/algorithm interaction

According to the hyperref documentation, the algorithm package should be loaded after hyperref:
algorithm:
\usepackage{hyperref}
\usepackage[chapter]{algorithm}% eg.
According to the hyperref documentation, all packages should be loaded before hyperref:
In most cases, therefore, you should load your package before you load hyperref, and hyperref will patch things up so that they work, so you can utilise your (patched) package after loading both:
If you do the first, you get this annoying set of warnings:
! pdfTeX warning (ext4): destination with the same identifier (name{page.1}) has been already used, duplicate ignored
If you do the second, you get an error:
undefined control sequence \theHalgorithm
Clearly, the first is preferable to the second, but even the first is terribly annoying. Does anyone have any ideas on how this can be fixed ?

Update: It works ! A comment from Iain Murray points out that in the hyperref README, one is told to include the float package BEFORE hyperref , and only then include algorithm (after hyperref).
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