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3Â¥: Originally posted by hank612 at 2014-03-05 00:21:10
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ÓÉÓÚpÊǶàÏîʽ£¬ p'(f)= (f-a1)*(f-a2)...*(f-an) ( ¿ÉÄÜÓÐÖØ¸ù£¬ µ«ÊDz»¿ÉÔ¼Òò×Ó¶¼ÊÇÒ»´ÎµÄ, ´úÊý»ù±¾¶¨Àí)¡£ Òò´Ë (p(f))'= (f-a1)...(f-an)*f' (¸´ºÏº¯ÊýÇóµ¼).

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We_must_know. We_will_know.
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