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What is the meaning of the exercises marked with * at the back of Tongji Edition Advanced Mathematics Textbook?
It is an unnecessary question and belongs to multiple-choice questions.

Advanced Mathematics (Seventh Edition) is a national planning textbook for undergraduate students of general higher education in the Twelfth Five-Year Plan, which was compiled by the Department of Mathematics of Tongji University and published by Higher Education Press. Suitable for engineering students in colleges and universities.

This book is published in two volumes and consists of twelve chapters. It is revised on the basis of the sixth edition, and some concepts, theorems, formulas, exercises and other contents in the sixth edition have been revised and adjusted.

Version:

Advanced Mathematics (seventh edition) was revised by the Mathematics Department of Tongji University on the basis of the sixth edition. The revision of the seventh edition follows the requirements of "persisting in reform, constantly tempering and creating excellent products", and makes some modifications to the definition of individual concepts, the proof of a few theorems and formulas, and the hypothesis of theorems in the sixth edition.

In the connection with middle school mathematics, the content about set is deleted, and the mapping and function are kept; On the premise of adhering to the teaching requirements of engineering mathematics, we should deal with the hypothesis, rigor and applicability of related theorems; The text expression and symbol application of the whole book have been scrutinized; Some adjustments have been made to the arrangement of individual contents, and the exercise configuration has been further enriched and enriched, replacing a small number of exercises.

Advanced Mathematics (Seventh Edition) has absorbed the opinions and suggestions of some experts and readers such as Professor Jolin Tsai from Zhejiang University, Professor Li Zhonglai from Beijing Normal University, Professor Li Xincan from Beijing University of Aeronautics and Astronautics, Professor Bing Xu and Professor Li Qi from Beijing Jiaotong University.

With the above amendments, Advanced Mathematics (7th Edition) was published by Higher Education Press on July 20 14.