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D.15.13.21 projectLattice

Procedure from library multigrading.lib (see multigrading_lib).

Usage:
projectLattice(B); intmat B

Purpose:
A set of vectors in ZZ^m is given as the columns of B. Then this function provides a linear map ZZ^m --> ZZ^n having the primitive span of B its kernel.

Returns:
intmat

Example:
 


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