I asked Anders Jensen, "I would like to compute the weight vectors
corresponding to each reduced Groebner basis in gfan's output. Is
there a way to tell gfan to do this?"
He replied:
"There is a command "weightvector" that does exactly this. The command
is hidden (does not show up in the manual or the file system). To run
it type "gfan _weightvector" in your shell. MIND THE SPACE BEFORE '_'.
According to the --help text the correct thing to do would be to run
"gfan _weightvector -m" with the gfan output as input.
For example
gfan | gfan _weightvector -m
Q[x,y]
{x-y}
will produce a list of two vectors.
I hope this works out for you.
Best regards,
Anders"
Is there a way to access the weightvector command from the Sage
implementation of gfan?
Thanks!
Ursula
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