diff --git a/rk4.py b/rk4.py
index 206409b..03288ad 100644
--- a/rk4.py
+++ b/rk4.py
@@ -1,5 +1,5 @@
 import numpy as np
-
+#Metodo para resolver ecuaciones diferenciales
 def rungek4(fun, t, z0):
     nt = len(t)
     nz = len(z0)