Opened 12 years ago

Closed 12 years ago

#320 closed bug (fixed)

missing terms in factorization of multivariate polynomials

Reported by: martinralbrecht+singular_trac@… Owned by: mlee
Priority: critical Milestone: 3-1-3 and higher
Component: factory Version: 3-1-2
Keywords: sage Cc:

Description

                     SINGULAR                             /  Development                                                                                                                                       
 A Computer Algebra System for Polynomial Computations   /   version 3-1-1
                                                       0<
     by: G.-M. Greuel, G. Pfister, H. Schoenemann        \   Feb 2010
FB Mathematik der Universitaet, D-67653 Kaiserslautern    \
> ring r = 2,(x,y),dp;
> poly p = x^3*y^7 + x^2*y^6 + x^2*y^3;
> poly q = x^3*y^5;
> poly f = p*q;
> factorize(f);
[1]:
   _[1]=1
   _[2]=y
   _[3]=xy4+y3+1
   _[4]=x
[2]:
   1,6,1,5
> y^6 * (xy4+y3+1) * x^5;
x6y10+x5y9+x5y6
> f;
x6y12+x5y11+x5y8
> 

This was reported by Paul Zimmermann to the Sage track server at: hXXp://trac.sagemath.org/sage_trac/ticket/10902

Change History (3)

comment:1 Changed 12 years ago by mlee

This bug is fixed in Singular 3-1-2

comment:2 Changed 12 years ago by mlee

Owner: changed from somebody to mlee
Status: newassigned

comment:3 Changed 12 years ago by mlee

Resolution: fixed
Status: assignedclosed
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