diff --git a/src/Numerics/OdeSolvers/AdamsBashforth.cs b/src/Numerics/OdeSolvers/AdamsBashforth.cs
index c9b7d2d4..42d8ed0d 100644
--- a/src/Numerics/OdeSolvers/AdamsBashforth.cs
+++ b/src/Numerics/OdeSolvers/AdamsBashforth.cs
@@ -38,7 +38,7 @@ namespace MathNet.Numerics.OdeSolvers
         /// <param name="y0">Initial value</param>
         /// <param name="start">Start Time</param>
         /// <param name="end">End Time</param>
-        /// <param name="N">Number of subintervals</param>
+        /// <param name="N">Size of output array(the larger, the finer)</param>
         /// <param name="f">ode model</param>
         /// <returns></returns>
         public static double[] FirstOrder(double y0, double start, double end, int N, Func<double, double, double> f)
@@ -62,7 +62,7 @@ namespace MathNet.Numerics.OdeSolvers
         /// <param name="y0">Initial value 1</param>
         /// <param name="start">Start Time</param>
         /// <param name="end">End Time</param>
-        /// <param name="N">Number of subintervals</param>
+        /// <param name="N">Size of output array(the larger, the finer)</param>
         /// <param name="f">ode model</param>
         /// <returns></returns>
         public static double[] SecondOrder(double y0, double start, double end, int N, Func<double, double, double> f)
@@ -98,7 +98,7 @@ namespace MathNet.Numerics.OdeSolvers
         /// <param name="y0">Initial value 1</param>
         /// <param name="start">Start Time</param>
         /// <param name="end">End Time</param>
-        /// <param name="N">Number of subintervals</param>
+        /// <param name="N">Size of output array(the larger, the finer)</param>
         /// <param name="f">ode model</param>
         /// <returns></returns>
         public static double[] FourthOrder(double y0, double start, double end, int N, Func<double, double, double> f)
diff --git a/src/Numerics/OdeSolvers/RungeKutta.cs b/src/Numerics/OdeSolvers/RungeKutta.cs
index dd3ab6fe..bbf82490 100644
--- a/src/Numerics/OdeSolvers/RungeKutta.cs
+++ b/src/Numerics/OdeSolvers/RungeKutta.cs
@@ -43,7 +43,7 @@ namespace MathNet.Numerics.OdeSolvers
         /// <param name="y0">initial value</param>
         /// <param name="start">start time</param>
         /// <param name="end">end time</param>
-        /// <param name="N">Number of subintervals</param>
+        /// <param name="N">Size of output array(the larger, the finer)</param>
         /// <param name="f">ode function</param>
         /// <returns>approximations</returns>
         public static double[] SecondOrder(double y0, double start, double end, int N, Func<double, double, double> f)
@@ -71,7 +71,7 @@ namespace MathNet.Numerics.OdeSolvers
         /// <param name="y0">initial value</param>
         /// <param name="start">start time</param>
         /// <param name="end">end time</param>
-        /// <param name="N">number of subintervals</param>
+        /// <param name="N">Size of output array(the larger, the finer)</param>
         /// <param name="f">ode function</param>
         /// <returns>approximations</returns>
         public static double[] FourthOrder(double y0, double start, double end, int N, Func<double, double, double> f)
@@ -103,7 +103,7 @@ namespace MathNet.Numerics.OdeSolvers
         /// <param name="y0">initial vector</param>
         /// <param name="start">start time</param>
         /// <param name="end">end time</param>
-        /// <param name="N">number of subintervals</param>
+        /// <param name="N">Size of output array(the larger, the finer)</param>
         /// <param name="f">ode function</param>
         /// <returns>approximations</returns>
         public static Vector<double>[] SecondOrder(Vector<double> y0, double start, double end, int N, Func<double, Vector<double>, Vector<double>> f)
@@ -130,7 +130,7 @@ namespace MathNet.Numerics.OdeSolvers
         /// <param name="y0">initial vector</param>
         /// <param name="start">start time</param>
         /// <param name="end">end time</param>
-        /// <param name="N">number of subintervals</param>
+        /// <param name="N">Size of output array(the larger, the finer)</param>
         /// <param name="f">ode function</param>
         /// <returns>approximations</returns>
         public static Vector<double>[] FourthOrder(Vector<double> y0, double start, double end, int N, Func<double, Vector<double>, Vector<double>> f)