A product to adjust your mood when reviewing linear algebra and data structures. The rich second-generation genius Gong By chance, Wei Beicheng recognized him as his younger brother. From then on, he had a clingy "brother" around him every day, trying to make up for the love he had not enjoyed in these years. A month later, "brother" lost news. Two and a half years later, my brother, who had promised to become a doctor, became the statistical modeling teacher I wanted to work with. They seem to be missing out all the time, but making up for it all the time.
Purpose: Don't let children spend their entire lives curing their unhappy childhoods