u/Delicious-Deer8803

Hello everyone, I just finished high school and am going to pursue a double degree in mathematics and computer science. There is a 2-ish month gap till I start university. Are there any books that will help me bridge the gap between high school and university mathematics? My high school math course lacked quite a bit of linear algebra such as matrices, etc. If so, how would you recommend to read and practice problems. Any help would be greatly appreciated, thanks! My high school math course lacked quite a bit of linear algebra such as matrices, etc, so suggestions for linear algebra books would also be helpful!