Are there any poems or sentences that can describe the math course?

There are many poems that express mathematical ideas and concepts. For example, the new high school mathematics textbook edited by Academician Zhang Jingzhong (experimental textbook of new curriculum standard of Hunan Education Press) has a poem in each chapter. For example, the first chapter, "Collection, Mapping and Function", talks about the sunset, flowers and fruits, and the vicissitudes of life. cause and effect