Recommendation Letter To the Admissions Committee, December 25, 2024 I am glad to recommend CHENG Siyuan, one of the most diligent and gifted students I have ever instructed in my courses, which include Mathematical Model and Mathematical Experiment as well as Numerical Methods and Experiments at Chongqing University of Arts and Sciences. Since I have been able to work with him, Siyuan has expressed a fine aptitude for mathematics and a keenness to apply theoretical concepts to practical problems. In class, Siyuan showed great academic performance because he got high scores on both courses. What makes him unique is his vivid participation in lectures and mastering the most complex mathematical insights with ease. As an example, during the course of Mathematical Model and Mathematical Experiment, Siyuan showed profound ability for analysis and problem solving by his creative approach to real problems that were given in various class assignments. His work quite often demonstrated depth in insight, exceeding expectations, embedding ideas from multivariate statistical analysis and machine learning. Siyuan’s performance was equally impressive in project-based learning environments. He was a key contributor during group activities, particularly when tackling challenging problems that required collaborative efforts. His ability to communicate mathematical ideas clearly and effectively helped his peers understand complex concepts and contributed to the overall success of team projects. Beyond his academic accomplishments, Siyuan’s passion for mathematics was evident in his extracurricular projects. One notable example was his leadership in a Laptop Price Dataset Analysis Project, where he and his team developed a predictive model using regression analysis. This project not only achieved a high prediction accuracy but also demonstrated Siyuan’s capability to bridge the gap between theoretical knowledge and practical application, a skill that will undoubtedly benefit him in advanced studies and professional settings. Siyuan's work ethics and dedication go beyond classes: his internships serving as a Data Analyst and later as a Software Development Intern gave him hands-on practice in data processing, optimization, and automation. These experiences further developed his technical skills regarding Python, Matlab, and other statistical analysis tools, thus better preparing him for the challenge of advanced academic programs. Taking all together, the intellectual capability, technical expertise, and commitment to excellence of CHENG Siyuan make him an exceptionally qualified candidate to your program. I have no doubt that he will do great in your rigorous academic atmosphere and contribute to your institution in meaningful ways. I strongly recommend him for admission. Sincerely, Zhang Lingli, Ph.D. Associate Professor Chongqing University of Arts and Sciences Email: linglizhang@cqwu.edu.cn Phone: 17353112168
