Singular Manual: maxabs

| #### D.12.7.8 maxabs Procedure from library `rootsur.lib` (see rootsur_lib). Usage: maxabs(p); poly p Return: number: an upper bound for the largest absolute value of a root of p Assume: p is a univariate polynomial with rational coefficients Example:
    LIB "rootsur.lib";
    ring r = 0,x,dp;
    poly p = (x+2)*(x-1)*(x-5);
    maxabs(p);
    ==> 11
See also: sturm.

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