#18593: Relative tolerance in French Sage book
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       Reporter:  rbeezer            |        Owner:
           Type:  defect             |       Status:  positive_review
       Priority:  trivial            |    Milestone:  sage-6.8
      Component:  documentation      |   Resolution:
       Keywords:  french book        |    Merged in:
  doctest tolerance                  |    Reviewers:  Marc Mezzarobba
        Authors:  Rob Beezer         |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:  u/rbeezer          |  bf5b521bcbba59895cfae220284a3bc6ec05d12e
  /tolerance-french-book             |     Stopgaps:
   Dependencies:                     |
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Comment (by rbeezer):

 Paul - Sorry to have been incomplete on this one.  Indeed, the failure
 looks just like the AMD K10 "middle one."

 Marc - thanks for the review!

 {{{
 File "src/sage/tests/french_book/linsolve_doctest.py", line 86, in
 sage.tests.french_book.linsolve_doctest
 Failed example:
     Z.solve_right(R)  # rel tol 1e-14
 Expected:
     (-1.5000000000000044, -0.5000000000000009, 2.750000000000003)
 Got:
     (-1.5000000000000135, -0.5000000000000085, 2.7500000000000213)
 Tolerance exceeded in 1 of 3:
     -0.5000000000000009 vs -0.5000000000000085, tolerance 2e-14 > 1e-14
 }}}

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Ticket URL: <http://trac.sagemath.org/ticket/18593#comment:7>
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