In the plot, k3 is not so steep as k1 and k2, but in the calculating part, k4 > k3 > k2 > k1 at the beginning stage. So, maybe the plot can be adjusted a little. What I am curious about is why the Runge-Kutta method calculating in this way works? Thank you for your good work!
![ไข้ขึ้นเลย! เมื่อแฝดโดนจัดเต็มวัคซีนครบ2เดือน🤒 [cc] แดนแพทตี้ SS2 | EP.54 |](http://i.ytimg.com/vi/z2VHItnyyvY/mqdefault.jpg)
In the plot, k3 is not so steep as k1 and k2, but in the calculating part, k4 > k3 > k2 > k1 at the beginning stage. So, maybe the plot can be adjusted a little. What I am curious about is why the Runge-Kutta method calculating in this way works? Thank you for your good work!