Hi,
this is a followup to the above thread. Mike Hansen wrote a doctest
for gp.py and we hit the following problem:
sage -t devel/sage/sage/interfaces/gp.py
**********************************************************************
File "/Users/mabshoff/sage-3.1.2.alpha3/tmp/gp.py", line 522:
sage: gp.new_with_bits_prec(pi, 100)
Expected:
3.1415926535897932384626433832795028842
Got:
3.141592653589793238462643383
**********************************************************************
1 items had failures:
1 of 3 in __main__.example_27
***Test Failed*** 1 failures.
For whitespace errors, see the file /Users/mabshoff/sage-3.1.2.alpha3/
tmp/.doctest_gp.py
[4.1 s]
exit code: 1024
But notice the following:
32 bit:
bash-3.2$ ./sage
----------------------------------------------------------------------
| SAGE Version 3.1.2.alpha3, Release Date: 2008-08-31 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: gp.new_with_bits_prec(pi, 100)
3.141592653589793238462643383
sage: gp.new_with_bits_prec(pi, 1000)
3.141592653589793238462643383
sage: gp.new_with_bits_prec(pi, 10000)
3.141592653589793238462643383
sage: gp.new_with_bits_prec(pi, 100000)
3.141592653589793238462643383
64 bit:
[EMAIL PROTECTED]:/scratch/mabshoff/release-cycle/sage-3.1.2.alpha3$ ./
sage
----------------------------------------------------------------------
| SAGE Version 3.1.2.alpha3, Release Date: 2008-08-31 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: gp.new_with_bits_prec(pi, 100)
3.1415926535897932384626433832795028842
sage: gp.new_with_bits_prec(pi, 1000)
3.1415926535897932384626433832795028842
sage: gp.new_with_bits_prec(pi, 10000)
3.1415926535897932384626433832795028842
sage: gp.new_with_bits_prec(pi, 100000000000000)
3.1415926535897932384626433832795028842
I remember there being another ticket where the precision from pari
went a little nuts and I believe there is a patch by John Cremona. But
the above seems either related or a similar bug. We are tracking the
issue at #4023
Cheers,
Michael
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