Optimization of English Grammar Expression Based on the Discrete Dynamic Analysis Algorithm

The dynamic changes of grammatical functions in English teaching in different language environments are different. Based on this background, this paper studies the discrete dynamic modeling technology in the big data complex system. By analyzing the current situation of the English language, this paper studies the dynamic path of the development of English functional grammar. Different from traditional modeling algorithms, dynamic modeling of complex systems can accurately process the relevant data provided by big data. This paper discusses the influence of functional grammar on English listening teaching through dynamic modeling and predictive analysis. This study reduces the error rate of the English prediction model and determines that the change of English achievement is closely related to functional grammar. The results show that the dynamic modeling of complex systems can promote the rapid development of functional grammar in English teaching and provide an effective basis for grammar research. At the same time, the dynamic prediction model based on complex system modeling can accurately predict the actual effect of English grammatical functions on improving English proficiency.