[理工] [演算法] 證明polynomial root的bound

[allen168 (allenea)]

Let C1*x^n+C2*x^(n-1)+....+Cn*x+Cn+1 be a polynomial with a root at x=x0,

let Cmax be the largest absolute value of Ci. Show that

|x0| < (n+1)*Cmax/|C1|


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