Changeset b9b906 in git for Singular/LIB/zeroset.lib


Ignore:
Timestamp:
Jan 16, 2001, 2:48:47 PM (23 years ago)
Author:
Hans Schönemann <hannes@…>
Branches:
(u'spielwiese', 'fe61d9c35bf7c61f2b6cbf1b56e25e2f08d536cc')
Children:
081d28e7da33af82545a27eb9f8ee82b0884b9f0
Parents:
4e3468f1f6473297e317588e34a7719e241780f9
Message:
*hannes: lib format revisited


git-svn-id: file:///usr/local/Singular/svn/trunk@5078 2c84dea3-7e68-4137-9b89-c4e89433aadc
File:
1 edited

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  • Singular/LIB/zeroset.lib

    r4e3468 rb9b906  
    22///////////////////////////////////////////////////////////////////////////////
    33
    4 version="$Id: zeroset.lib,v 1.5 2000-12-22 15:59:36 greuel Exp $";
     4version="$Id: zeroset.lib,v 1.6 2001-01-16 13:48:47 Singular Exp $";
    55category="Symbolic-numerical solving";
    66info="
     
    1010          Current Adress: Institut fuer Informatik, TU Muenchen
    1111
    12 OVERVIEW: 
     12OVERVIEW:
    1313 Algorithms for finding the zero-set of a zero-dim. ideal in Q(a)[x_1,..x_n],
    1414 Roots and Factorization of univariate polynomials over Q(a)[t]
    15  where a is an algebric number. Written in the frame of the 
    16  diploma thesis (advisor: Prof. Gert-Martin Greuel) 'Computations of moduli 
     15 where a is an algebric number. Written in the frame of the
     16 diploma thesis (advisor: Prof. Gert-Martin Greuel) 'Computations of moduli
    1717 spaces of semiquasihomogenous singularities and an implementation in Singular'
    1818 This library is meant as a preliminary extension of the functionality
     
    169169RETURN:  list, all entries are polynomials
    170170         _[1] = roots of f, each entry is a polynomial
    171          _[2] = 'newA'  - if the groundfield is Q(a') and the extension field 
     171         _[2] = 'newA'  - if the groundfield is Q(a') and the extension field
    172172                is Q(a), then 'newA' is the representation of a' in Q(a)
    173173         _[3] = minpoly of the algebraic extension of the groundfield
     
    321321OPTIONS: opt = 0 no primary decomposition (default)
    322322         opt > 0 primary decomposition
    323 NOTE:    If I contains an algebraic number (parameter) then 'I' must be 
     323NOTE:    If I contains an algebraic number (parameter) then 'I' must be
    324324         transformed w.r.t. 'newA' in the new ring.
    325325EXAMPLE: example ZeroSet; shows an example
     
    708708         _[2] = g (= f(x - s*a)) (poly)
    709709         _[3] = s (int)
    710 ASSUME:  f must be squarefree, basering = Q[x,a] and ideal 'mpoly' is equal to 
     710ASSUME:  f must be squarefree, basering = Q[x,a] and ideal 'mpoly' is equal to
    711711         'minpoly',this represents the ring Q(a)[x] together with 'minpoly'.
    712712NOTE:   the norm is an element of Q[x]
     
    757757         _[1] = factors (monic), first entry is the leading coefficient
    758758         _[2] = multiplicities (not yet)
    759 ASSUME:  basering must be the univariate polynomial ring over a field which 
     759ASSUME:  basering must be the univariate polynomial ring over a field which
    760760         is Q or a simple extension of Q given by a minpoly.
    761761NOTE:    if basering = Q[t] then this is the built-in 'factorize'.
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