|  |  D.8.1.5 XLsolve Procedure from libraryffsolve.lib(see  ffsolve_lib).
 
Example:Usage:
XLsolve(I[, d]); I ideal, d optional integer
solve I (system of multivariate polynomials) with a
 variant of the linearization technique, multiplying
 the polynomials with monomials of degree at most d
 (default is 2)
 
Return:
list L of the common roots of I as ideals
Assume:
basering is a finite field of type (p^n,a)
 |  | LIB "ffsolve.lib";
ring R = (2,a),x(1..3),lp;
minpoly=a2+a+1;
ideal I;
I[1]=(a)*x(1)^2+x(2)^2+(a+1);
I[2]=(a)*x(1)^2+(a)*x(1)*x(3)+(a)*x(2)^2+1;
I[3]=(a)*x(1)*x(3)+1;
I[4]=x(1)^2+x(1)*x(3)+(a);
XLsolve(I, 3);
==> [1]:
==>    _[1]=x(3)+(a+1)
==>    _[2]=x(2)+1
==>    _[3]=x(1)+1
 | 
 
 |