what fixed step and variable step solver

17:03

14:10

1:49

14:59

13:55

8:36

20:13

8:36

21:53

3:26

8:27

7:37

8:08

10:18

10:59

2:03

10:00

10:00

10:06

3:16

14:53

12:36

19:59

8:28

5:16

7:37

10:49

10:01

8:09

9:04

8:16

7:38

8:20

7:36

7:28

13:35

کوتاه

2:03

2:03

16:34