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D.15.13.20 preimageLattice
Procedure from library multigrading.lib (see multigrading_lib).
- Usage:
- preimageLattice(P, B); intmat P, intmat B
- Purpose:
- compute an integral basis for the preimage of B under
the homomorphism of lattices defined by the intmat P.
- Returns:
- intmat
Example:
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