JVERSION
Engine: j806/j32/linux
Beta: GPL3/2018-07-11T14:18:06
Library: 8.05.14
Platform: Linux 32
Installer: unknown
InstallPath: /home/wheagy/tmp/jbld/j32
Contact: [email protected]
(current git)
But: it's been going on for awhile, showing up as a error in g410. I'm
pretty sure I tried it in one of the recent beta releases. It's in
intel 32 and 64nonavx.
On 2018-07-14 06:54 PM, bill lam wrote:
what's the JVERSION
On Sun, Jul 15, 2018, 6:50 AM Bill Heagy <[email protected]> wrote:
It looks like a problem with "^":
2^0.5
1.41421
2^0.5j3
1.41421
For complex exponent with a real part of 0.5 (sqrt), it appears to
ignore the imaginary part.
On 2018-07-02 04:52 PM, Bill Heagy wrote:
I haven't checked it all out, but I suspect the problem is that the
Stirling formula is asymmptotic, and has a larger error near 1.
On 2018-07-02 12:20 PM, Bill Heagy wrote:
First four runs on 32bit linux:
1j7.26
1j8.53
1j_3.14
1j_2.67
64bit machine gives different imaginary parts, but real part=1. Looks
like 1j(whatever) may be causing the problem.
On 2018-07-02 07:45 AM, Henry Rich wrote:
When this fails, what is the value in z that gives the error?
BTW, Bill, that error with gcc that you reported a few weeks back
turned out to be a program error that showed up only on that
compiler. If you switch back to gcc now it should be gone.
Henry Rich
On 6/29/2018 9:59 PM, Bill Heagy wrote:
If I run test/g410.ijs often enough, I get:
100 RUN2 'g410'
.......
1 1 1 1 1 1 1 1
(g = gamma) x=: _4.1 _4.9 4.1 4.9 j./_0.4 _0.5 0.4 0.5 _4 _5 4 5
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
(g =!.1e_12 gamma) 1.5
1
(g =!.1e_12 gamma) 1r3 1r2 2r3
1 1 1
(g =!.1e_12 gamma) x=: 1e_2*_7e2+?2 20$2e3
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
(g =!.1e_12 gamma) x=: 3e_2*_7e2+?2 20$2e3
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
(g =!.1e_12 gamma) z=:j./1e_2*_7e2+?2 20$2e3
1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
|assertion failure
|[-103] /home/wheagy/git/jsource/test/g410.ijs
Which specific value is wrong changes from failure to failure, but
it's always this line, and it appears to happen about every 50 to
100 iterations. This happens on debian linux 32 and 64nonavx, with
the latest beta release and when compiled from the latest version on
github.
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