Hi:
I'm wondering if the following possible error (in 2.10.3.rc0) is already known,
or if I'm just doing something stupid:
sage: R.<a,b,c,d> = PolynomialRing(QQ, 4)
sage: I = ideal(b^2-a*c, c^2-b*d, a*d-b*c)
sage: F = I.groebner_fan(); F
Groebner fan of the ideal:
Ideal (b^2 - a*c, c^2 - b*d, -b*c + a*d) of Multivariate Polynomial
Ring in a, b, c, d over Rational Field
sage: F.reduced_groebner_bases()
------------------------------------------------------------
File "<string>", line 1
Ideal (b**2 - a*c, c**2 - b*d, -b*c + a*d) of Multivariate
Polynomial Ring in a, b, c, d over Rational Field
^
<type 'exceptions.SyntaxError'>: invalid syntax
sage: F.fvector()
------------------------------------------------------------
File "<string>", line 1
Ideal (b**2 - a*c, c**2 - b*d, -b*c + a*d) of Multivariate
Polynomial Ring in a, b, c, d over Rational Field
^
<type 'exceptions.SyntaxError'>: invalid syntax
If this is indeed an error, should I make a new trac ticket or has it
already been
reported?
- David Joyner
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