1- Lecture 1-2

2- Lecture 3, sheet 1, sheet 2, sheet3, (solve example), (solved 1, solved 2)

3- Lecture 4-5

4- Lecture 6

5- ٍSheet 4 Project, 1, 2, 3, 4 , 5

6- lec 7

7- lec 8 , 88

8- Lec 9