Yang Guangyu is an author for whom very limited public information is available. The verifiable information about him centers mainly on supplementary high school mathematics books that he has contributed to. Two of his works are included in the database, namely High School Mathematics: Compulsory 2 and High School Mathematics: Elective 2-1, both falling under the exam category. This suggests that his writing is closely tied to synchronized training for the high school mathematics curriculum and to exam preparation. Judging from the existing titles, Yang Guangyu's editorial work follows the knowledge structure of high school mathematics textbooks, covering both compulsory and elective modules and serving students' practical needs in daily study and review. Because public records of his biography and professional background are lacking, little more can be said about his personal experience, and any assessment of his works' influence must remain limited to their subject positioning. Overall, Yang Guangyu can be regarded as an author involved in compiling high school mathematics supplementary materials, whose contribution lies chiefly in supporting curriculum standards and helping students consolidate their mathematical foundations and improve their problem-solving skills.
