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D.12.7.8 coords

Procedure from library rootsmr.lib (see rootsmr_lib).

Usage:
coords(f,b,i), f poly, b,i ideal

Return:
list of numbers: the coordinates of the class of f (mod i) in the monomial basis b

Assume:
i is a Groebner basis and b is an ordered monomial basis of r/i, r = basering

Example:
 
See also: matbil; matmult.


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