From ApCoCoAWiki
Revision as of 11:55, 24 April 2009 by Stadler (talk | contribs)


Checks if a given set of polynomials vanishes at a given set of points.


Num.IsAVI(Polys:LIST, Points:MAT, Epsilon:RAT):[A:INT or RAT,B:INT or RAT];


Please note: The function(s) explained on this page is/are using the ApCoCoAServer. You will have to start the ApCoCoAServer in order to use it/them.

Checks if a set of polynomials vanishes at a set of points epsilon approximately. The polynomials are preprocessed first to have norm 1.

  • @param Polys A list of polynomials.

  • @param Points A matrix containing the points to check.

  • @param Epsilon Rational number

  • @return A number A which specifies how well the points vanish on average and a number B which contains the maximal evaluation value


-- CoCoAServer: computing Cpu Time = 0
[1/2, 1]

See also

Introduction to CoCoAServer