修改龙格库塔bug

2025-06-17 00:07:14 +08:00
parent 08d293657d
commit fc0e7cec5f
7 changed files with 357 additions and 1 deletions
--- a/279-3.py
+++ b/279-3.py
@@ -7,7 +7,7 @@ def ClassicRK(x0,y0,h,xk,fxy):
        k2 = fxy(x0+h/2,y0+h*k1/2)
        k3 = fxy(x0+h/2,y0+h*k2/2)
        k4 = fxy(x0+h,y0+h*k3)
-        y0 += h*(k1+4*k2+k3)/6
+        y0 += h*(k1+2*k2+2*k3+k4)/6
        x0 += h
        result.append((x0,y0))
    return result