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[Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source
From: |
Marco Caliari |
Subject: |
[Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW) |
Date: |
Mon, 01 Aug 2011 14:28:45 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 |
Follow-up Comment #2, bug #33863 (project octave):
Dear Tatsuro,
regarding the first failure, do you know that quadl uses a default *relative*
tolerance equal to eps? Then,
abs(quadl(@(x) sin(3*x).*cosh(x).*sinh(x),10,15)-exact)/exact
ans = 8.40038953790526e-15
which is not eps, but still quite good (and less than 9e-15). About the value
of exact, it seems that the value provided in the test is wrong in the last
digit: in fact, I also get
exact = 2.588424538641647e+10;
abs(quadl(@(x) sin(3*x).*cosh(x).*sinh(x),10,15)-exact)/exact
ans = 1.04636431086188e-14
but if I use the *exact* value
exact = 25884245386.416416168212890625
everything is fine. Regarding the second failure, I will say something in
#33792.
Marco
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- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW),
Marco Caliari <=
- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW), Tatsuro MATSUOKA, 2011/08/04
- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW), Tatsuro MATSUOKA, 2011/08/09
- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW), Marco Caliari, 2011/08/09
- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW), Tatsuro MATSUOKA, 2011/08/17
- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW), Rik, 2011/08/25
- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW), Tatsuro MATSUOKA, 2011/08/25
- [Octave-bug-tracker] [bug #33863] Two test fails in quadl.m (dev. source MinGW), Tatsuro MATSUOKA, 2011/08/25