I'm not sure how 'tol' is calculated or used but this allowed the test to
pass
diff --git a/src/sage/matrix/matrix_double_dense.pyx
b/src/sage/matrix/matrix_double_dense.pyx
index 61894c8..62425f7 100644
--- a/src/sage/matrix/matrix_double_dense.pyx
+++ b/src/sage/matrix/matrix_double_dense.pyx
@@ -665,7 +665,7 @@ cdef class Matrix_double_dense(Matrix_dense):
an identity matrix can hit the minimum with the right norm. ::
sage: A = matrix(RDF, 10, [1/(i+j+1) for i in range(10) for j
in range(10)])
- sage: A.condition() # tol 1e-4
+ sage: A.condition() # tol 1.1e-4
16332197709146.014
sage: id = identity_matrix(CDF, 10)
sage: id.condition(p=1)
So perhaps adjusting the 'tol' is in order unless the 'tol' is being
applied incorrectly. I have had tolerance issues in the past with this same
doctest on the presently used hardware.
On Monday, September 19, 2016 at 10:39:47 PM UTC-5, Steven Trogdon wrote:
>
> On Gentoo 1 failure:
>
> sage -t --long src/sage/matrix/matrix_double_dense.pyx
> **********************************************************************
> File "src/sage/matrix/matrix_double_dense.pyx", line 668, in
> sage.matrix.matrix_double_dense.Matrix_double_dense.condition
> Failed example:
> A.condition() # tol 1e-4
> Expected:
> 16332197709146.014
> Got:
> 16333848415071.576
> Tolerance exceeded:
> 16332197709146.014 vs 16333848415071.576, tolerance 1e-04 > 1e-04
> **********************************************************************
>
> Now usually the tol spec if fairly close. But this way off.
>
> On Friday, September 16, 2016 at 4:18:56 PM UTC-5, Volker Braun wrote:
>>
>> As always, you can get the latest beta version from the "develop" git
>> branch. Alternatively, the self-contained source tarball is at
>> http://www.sagemath.org/download-latest.html
>>
>
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