#8029: Defect: Power series over a polynomial ring with real coefficients
------------------------------------------------------------+---------------
Reporter: eduenez | Owner:
AlexGhitza
Type: defect | Status:
positive_review
Priority: minor | Milestone:
Component: algebra | Keywords:
polynomial ring, power series, sd35
Work_issues: | Upstream:
N/A
Reviewer: Mike Hansen, Francis Clarke, Robert Campbell | Author:
Eduardo Dueñez, Michael Orlitzky
Merged: | Dependencies:
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Changes (by kcrisman):
* reviewer: Mike Hansen => Mike Hansen, Francis Clarke, Robert Campbell
Comment:
In private communication last night, Robert Campbell wrote to me and mjo:
{{{
Running Sage v 4.7.2 on a PowerMac G5 running OSX 10.5.8 it seems to work.
If desired I can take the time to compile and run one of the 4.8 alphas,
but that may take a few days until I can find the time.
----------------------------------------------------------------------
| Sage Version 4.7.2, Release Date: 2011-10-29 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: A.<x> = RR['x']
sage: B.<t> = PowerSeriesRing(A) # B = R[x][[t]]
sage: 1. + O(t)
1.00000000000000 + O(t)
sage: 1. + O(t^2)
1.00000000000000 + O(t^2)
sage: 1. + O(t^3)
1.00000000000000 + O(t^3)
sage: 1. + O(t^4)
1.00000000000000 + O(t^4)
sage:
}}}
That's a lot of confirmation.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8029#comment:8>
Sage <http://www.sagemath.org>
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