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D.8.4.1 nt_solve

Procedure from library ntsolve.lib (see ntsolve_lib).

Usage:
nt_solve(gls,ini[,ipar]); gls,ini= ideals, ipar=list/intvec,
gls: contains the equations, for which a solution will be computed
ini: ideal of initial values (approximate solutions to start with),
ipar: control integers (default: ipar = [100, 10])
 
 ipar[1]: max. number of iterations
 ipar[2]: accuracy (we have the l_2-norm ||.||): accepts solution sol
          if ||gls(sol)|| < eps0*(0.1^ipar[2])
          where eps0 = ||gls(ini)|| is the initial error

Assume:
gls is a zerodimensional ideal with nvars(basering) = size(gls) (>1)

Return:
ideal, coordinates of one solution (if found), 0 else

Note:
if printlevel >0: displays comments (default =0)

Example:
 


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            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.