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the maximum of the absolute values of the coefficients of a polynomial
CoeffHeight(F: RINGELEM): RINGELEM |
This function returns the maximum of the absolute values of the
coefficients of
F
; naturally, the coefficient ring must be
arithmetically ordered.
/**/ use P ::= QQ[x,y];
/**/ f := (2*x-3*y)^2;
/**/ f;
4*x^2 -12*x*y +9*y^2
/**/ CoeffHeight(f);
12
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