・この動画「

数学分析 第二节二元函数的极限

」@bilibili.comと
　　↓↓↓一緒に視聴されています(Often Viewed With)：↓↓↓

・数学分析幂级数的展开（2）
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・数学分析（华东师大第四版） 二元函数的连续性
・微积分7.6 多元函数的极值与最值
・数学分析第14章第2节函数的幂级数展开

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