Did you check the lrs documentation: http://cgm.cs.mcgill.ca/~avis/C/lrslib/USERGUIDE.html#Volume%20Computation ? It only mentions volumes of full polytopes. You could of course project the vertices yourself or pull them back along the embedding of a subspace containing the polytope to get a full one. Then it would be your own responsibility of choosing a basis that expresses the appropriate measure.
On Wednesday, 23 February 2022 at 07:57:34 UTC-8 adva...@gmail.com wrote: > Hi All, > > I aim to calculate the volumes of not-full dimensional polytopes. Using > ambient measure, the volume is always 0. So, I want to use induced measure. > At the same time, though, I also want the engine to be Lrs. > > If I just do .volume(engine = 'lrs'), I always get 0. Is this an error? Or > is this because the system is using ambient measure for the volume? > > To try and fix the issue, I want to have both induced measure and lrs > engine. However, when I input something like .volume(measure = 'induced', > engine = 'lrs'), I get an error. Is there some way for me to get both? > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/e5443458-1084-4004-995c-43fa41413e31n%40googlegroups.com.
