檢視拐点的原始碼

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|<center><img src=https://img0.baidu.com/it/u=688168768,1407089125&fm=253&fmt=auto&app=138&f=JPEG?w=640&h=408 width="300"></center>
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中文名；拐点

意思；是事物发展过程中运行趋势或运行速率的变化

别称；极值点

拼音；guaidian
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'''拐点'''，又称反曲点，在数学上指改变曲线向上或向下方向的点，直观地说拐点是使切线穿越曲线的点（即连续曲线的凹弧与凸弧的分界点）。若该曲线图形的[[函数]]在拐点有[[二阶导数]]，则二阶导数在拐点处异号（由正变负或由负变正）或不存在。<ref>[https://wenda.so.com/q/1638289840217899?src=180&q=%E6%8B%90%E7%82%B9 拐点],360问答 , 2021年11月19日</ref>