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D.12.7.6 matmult

Procedure from library rootsmr.lib (see rootsmr_lib).

Usage:
matmult(f,b,i); f poly, b,i ideal

Return:
matrix: the matrix of the multiplication map by f (m_f) on r/i w.r.t. to the monomial basis b of r/i (r = basering)

Assume:
i is a Groebner basis and b is an ordered monomial basis of r/i, as given by qbase(i)

Example:
 
See also: coords; matbil.


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