-->1.
Concrete Mathematics
by Ronald L. Graham, Donald E. Knuth, and Oren Patashnik
2.
A First Course in Abstract Algebra
by John B. Fraleigh
3.
Matrix Computations
by Gene H. Golub, Charles F. Van Loan
4.
Calculus
by Stewart
Last book can be ignored if you don't want to revise calculus
没有国内出版的么?
我是说国内高校出版的书哦,中文版的,偶英文水平没有那么高呀!