The Research of the Existence of Double Limit
LI An-kun · Journal of Anhui University of Science and Technology · 2005
The authors discusse the existence of double limit. On the basis of the classical theory, a detailed proof about the theory brought forward in Document [1]is given, so comes an available method to decide the existence of quadratic limit. The authors also give a proof to the rules of clipping and approaching and its application. Therefore the theory of the existence of double limit has a development.