19th Huawei Cup National Mathematical Modeling Competition A-level ... China Postgraduate Mathematical Modeling Competition, as one of the theme competitions of "China Postgraduate Innovation Practice Series Competition" sponsored by the Department of Degree Management and Postgraduate Education of the Ministry of Education, the China Institute of Degree and Postgraduate Education and the Youth Science and Technology Center of China Association for Science and Technology, is an academic competition for graduate students to learn mathematical modeling applications, aiming at improving their ability to build mathematical models and solve practical problems by using Internet information technology, and cultivating their scientific research innovation spirit and sense of teamwork.