摘要
通过对不同教材中拐点定义的比较、分析,给出拐点的恰当定义,试图对二阶导数与拐点的关系作进一步的推广,进而得出拐点与导数的关系,并在此基础上给出拐点的判别方法。
Through different materials to the inflection point of the definition of comparison, analysis, given the proper definition of inflection point in an attempt to second - order derivative relationship with inflection point for further extension, and that inflection point and derivative relations, and on this basis given the inflection point of distinction.
出处
《廊坊师范学院学报（自然科学版）》
2008年第6期5-9,共5页
Journal of Langfang Normal University(Natural Science Edition)
关键词
函数
导数
拐点
凸曲线
凹曲线
function
derivate
infexion
convex curve
concave curve
