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I always found this annoying:
```
sage: t = cputime()
sage: P = PolynomialRing(QQ,8,'x')
sage: I = sage.rings.ideal.Katsura(P)
sage: I.groebner_basis()
sage: print cputime(t)
0.217967
```
so here'…
malb updated
15 years ago
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For the attached list, `Ideal(gb).basis_is_groebner()` returns `True` but the basis is not a Gröbner basis!
The code in question:
```
def basis_is_groebner(self, singular=singular_default):
…
malb updated
15 years ago
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This is a left over from #4589: The doctest below from sage/rings/polynomial/multi_polynomial_ideal.py changes depending on whether M2 is installed or not since the GBasis computation uses the optio…
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I get this failure on an intel mac:
```
sage -t "devel/sage/sage/rings/polynomial/toy_d_basis.py"
**********************************************************************
File ".../devel/sage/sage/r…
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This example from Genya Zaytman:
```
sage: F1. = NumberField(x^6 + 6*x^5 + 124*x^4 + 452*x^3 + 4336*x^2 + 8200*x + 42316)
sage: reduct_id = F1.factor_integer(47)[0][0]
sage: Rf = F1.residue_field(r…
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```
sage: B.=BooleanPolynomialRing(30,order='lex')
sage: I1=ideal([x13*x15 + x1*x7*x13*x25 + x9*x22 + x17 + x18 + x3 + x13,1 + x6*x21 + x3,x2*x18 + 1 + x16*x25,x15 + x9 + x1*x10*x20,x23 + x9*x21*x2…
malb updated
15 years ago
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Building the docs for 4.3.1.rc0 produces these errors:
```
/home/john/sage-4.3.1.rc0/local/lib/python2.6/site-packages/sage/algebras/quatalg/quaternion_algebra.py:docstring of sage.algebras.quatalg…
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This should be pretty straightforward.
sage-support request from Ursula Whitcher:
I asked Anders Jensen, "I would like to compute the weight vectors
corresponding to each reduced Groebner basis in …
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This ticket is a migration of #1137. There was a patch associated with the ticket, that was merged in to the library, but it was not related to the original issue. Below is a reproduction of the ori…
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To make the answer returned by `Ideal.groebner_basis` truely canonical, sort it. The attach patch also fixes some doctest failures in `rings/polynomial` and replaces #4035.
Component: **commutative…
malb updated
15 years ago