摘要
把文献［１］和［２］的结果推广到二元函数，从而扩充了二元Ｔａｙｌｏｒ公式。
The results of paper[1][2] were spread to two-variables function.The Taylor's formula for two variables is therefrom extended.
关键词
二元函数
泰勒公式
中值
逼近
aylor's formula for two variables
Mean value of remainder
Approach
