Opened 14 years ago
Closed 14 years ago
#62 closed bug (fixed)
division of poly (by 1, -1, or content) failure
Reported by: | seelisch | Owned by: | hannes |
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Priority: | minor | Milestone: | Release 3-1-0 |
Component: | dontKnow | Version: | |
Keywords: | division | Cc: | gorzelc@… |
Description
Hallo Hans,
in Singular 3-1-0
Singular for ix86-Linux version 3-1-0 (3100-2009011515) Jan 15 2009 15:20:58
sind noch weitere BUGS:
z.Bsp:
Division von Polynomen durch die Einheiten 1 und -1 im Ring mit Koeffizientenbereich integer fuehrt zum Crash
ring Zx = integer,x,dp;
You are using coefficients rings which are not fields. Please note that only limited functionality is available for these coefficients. The following commands are meant to work: - basic polynomial arithmetic - std - reduce
poly f = x; f/1; Crash
* glibc detected * double free or corruption (fasttop): 0x0865a610 * Singular : signal 6 (v: 3100/2009011515): Segment fault/Bus error occurred at 853de91 because of 0 (r:1232050448) please inform the authors trying to restart... .
Desweiteren sollte Division durch den content erlaubt sein.
ring Zx = integer,x,dp;
poly f = x; f/2; OK nach Definition
0
poly g = 2x2+2; sollte x2+1 ergeben g/2;
* glibc detected * double free or corruption (fasttop): 0x0865a5d0 * Singular : signal 6 (v: 3100/2009011515): Segment fault/Bus error occurred at 853de91 because of 0 (r:1232050996) please inform the authors trying to restart...
und weiter:
ring Zx = integer,x,dp;
number m = 4; m/2;
2
m/number(2);
2
m/number(3);
Division by non divisible element. Result is without remainder. 1 OK
m/number(5);
Division by non divisible element. Result is without remainder. * glibc detected * double free or corruption (fasttop): 0x0865a5c8 * Singular : signal 6 (v: 3100/2009011515): Segment fault/Bus error occurred at 853de91 because of 0 (r:1232051067) please inform the authors trying to restart... .
------
Gruss
Christian
Change History (2)
comment:1 Changed 14 years ago by
Owner: | changed from somebody to hannes |
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comment:2 Changed 14 years ago by
Cc: | gorzelc@… added |
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Resolution: | → fixed |
Status: | new → closed |
Fehler in nrzDiv, nrzInvers gefixt.