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D.15.6.5 isAface

Procedure from library gitfan.lib (see gitfan_lib).

Usage:
isAface(a,gam0); a: ideal, gam0:intvec

Purpose:
Checks whether the face of the positive orthant,
that is spanned by all i-th unit vectors,
where i ranges amongst the entries of gam0,
is an a-face.

Return:
int

Example:
 


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