I am fairly new to polymake. I was reading Section 6 of the article "Tropical Convex Hull Computations". They suggest the following code, but it does not run. Any help will be appreciated it. If it helps, I am running polymake version 2.13 in Ubuntu.
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~$ polymake -A tropical
tropical > $p = new TropicalPolytope<Rational>(POINTS => [[0,3,6],[0,5,2],[0,0,1],[1,5,0]]);
tropical > print @{rows_labeled($p->PSEUDOVERTICES)};
polymake: used package cddlib
Implementation of the double description method of Motzkin et al.
Copyright by Komei Fukuda.
http://www.ifor.math.ethz.ch/~fukuda/cdd_home/cdd.html
polymake: ERROR: Can't use string ("10") as an ARRAY ref while "strict refs" in use.
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What is the meaning of this message? How can I fix it?
Thanks!