parabolic equation

6:55

33:33

13:44

7:03

1:28

33:33

1:42

5:35

22:53

7:09

12:24

7:49

3:53

4:06

4:55

3:11

5:08

14:41

6:06

4:06

6:01

13:03

2:01

10:55

5:42

3:17

3:18

3:55

4:53

6:45

3:52

2:28

7:51

11:36

6:58

2:17

2:08

2:40

4:59

6:20