Tall man. According to relevant public information, spsspro Cup is a national modeling contest to save learning, which has a wide influence and is very famous all over the country, so its gold content is very high. Mathematics is a subject that studies concepts such as quantity, structure, change, space and information. Mathematics is a universal means for human beings to strictly describe the abstract structure and mode of things, and can be applied to any problem in the real world. All mathematical objects are artificially defined in essence.