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D.15.1.3 coeff

Procedure from library arnold.lib (see arnold_lib).

Usage:
coeff(f,m); f poly, m poly

Return:
the coefficient of m in f

Example:
 
LIB "arnold.lib";
ring R=0,(x,y),ds;
poly f = 2*x^2+5*x*y+7*x^7;
poly m = x*y;
coeff(f,m);
==> 5


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