#6150: numerical noise issues in 4.0.rc1
---------------------+------------------------------------------------------
Reporter: mhansen | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.0
Component: algebra | Keywords:
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{{{
sage -t "devel/sage/sage/matrix/matrix2.pyx"
sage -t "devel/sage/sage/symbolic/expression.pyx"
sage -t "devel/sage/sage/matrix/matrix2.pyx"
**********************************************************************
File
"/home/jaap/Download/sage-4.0.alpha0/devel/sage/sage/matrix/matrix2.pyx",
line 4964:
sage: m.change_ring(CDF).eigenvalues() # again for display purposes
Expected:
[10.463115298 - 4.98835989975e-16*I, 7.42365754809 -
5.05298436852e-16*I, 3.36964641458 + 5.59670199836e-17*I, 1.25904669699 +
4.34508443713e-17*I,
0.00689184179485 - 5.75358699674e-17*I, 0.330700789655 +
5.1816322259e-16*I]
Got:
[10.463115298 - 4.46500755169e-16*I, 7.42365754809 +
1.02246204259e-16*I, 3.36964641458 - 2.25910315504e-16*I, 1.25904669699 +
7.13217318887e-17*I,
0.00689184179485 - 3.00110164897e-16*I, 0.330700789655 +
1.23712186398e-16*I]
**********************************************************************
1 items had failures:
1 of 36 in __main__.example_81
sage -t "devel/sage/sage/symbolic/expression.pyx"
**********************************************************************
File
"/home/jaap/Download/sage-4.0.alpha0/devel/sage/sage/symbolic/expression.pyx",
line 4395:
sage: maxima('atanh(0.5)')
Expected:
.5493061443340548
Got:
.5493061443340549
**********************************************************************
File
"/home/jaap/Download/sage-4.0.alpha0/devel/sage/sage/symbolic/expression.pyx",
line 946:
sage: hash(x^y)
Expected:
4043309056
Got:
-251658240
**********************************************************************
2 items had failures:
1 of 9 in __main__.example_115
1 of 14 in __main__.example_33
***Test Failed*** 2 failures.
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6150>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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