What do you mean by compulsory and elective mathematics in senior high school?
Compulsory courses are compulsory and elective courses are optional. High school mathematics is rich in content, which is divided into compulsory mathematics and elective mathematics. Mathematics in Senior High School is a book published by People's Education Publishing House, which is jointly compiled by People's Education Publishing House, Institute of Curriculum Textbooks and Research and Development Center of Mathematics Curriculum Textbooks.