For most college students, economic mathematics or advanced mathematics is a long-standing problem. In addition to listening carefully, students also need to spend a lot of time doing problems and analyzing problems after class to achieve the purpose of consolidation. However, it is difficult for most students to analyze and deal with problems by themselves, so it is very necessary to use some software to help themselves. As far as economic mathematics or advanced mathematics is concerned, there are still many softwares that can search questions. Among them, you can search through Baidu Library College APP, intelligent search questions, search questions, etc. If you want to take photos and search for high numbers, you can consider using quick answer, high number search software symbolab, digital empire and so on. These are all good resources. You can try.
However, students should also note that although there are many online platforms, not all of them are free. If you can't solve your study problems through free resources, you can still actively communicate with professional teachers and solve your study problems with their help and guidance.