M | Akbar et al. (2013) (RKF-45 method) | Fathizadeh et al. (2013) (HAM method) | Present result (RKF-45 method) |
---|---|---|---|
1 | − 1.41421 | − 1.41421 | − 1.41421 |
5 | − 2.44948 | − 2.44948 | − 2.44949 |
10 | − 3.31662 | − 3.31662 | − 3.31662 |
50 | − 7.14142 | − 7.14142 | − 7.14143 |
500 | − 22.3830 | − 22.3830 | − 22.38302 |
1000 | − 31.6386 | − 31.6386 | − 31.63858 |