diff --git a/Source/OpenTK/DisplayDevice.cs b/Source/OpenTK/DisplayDevice.cs
index 13380180..b90a3273 100644
--- a/Source/OpenTK/DisplayDevice.cs
+++ b/Source/OpenTK/DisplayDevice.cs
@@ -322,9 +322,9 @@ namespace OpenTK
#region GetDisplay
///
- /// Gets the for the specified .
+ /// Gets the for the specified .
///
- /// The that defines the desired display.
+ /// The that defines the desired display.
/// A or null, if no device corresponds to the specified index.
public static DisplayDevice GetDisplay(DisplayIndex index)
{
diff --git a/Source/OpenTK/Math/Matrix3.cs b/Source/OpenTK/Math/Matrix3.cs
index c3244749..4c594930 100644
--- a/Source/OpenTK/Math/Matrix3.cs
+++ b/Source/OpenTK/Math/Matrix3.cs
@@ -410,7 +410,7 @@ namespace OpenTK
/// Scale factor for the x axis.
/// Scale factor for the y axis.
/// Scale factor for the z axis.
- /// A scale matrix.
+ /// A scale matrix.
public static void CreateScale(float x, float y, float z, out Matrix3 result)
{
result = Identity;
diff --git a/Source/OpenTK/Math/Matrix3d.cs b/Source/OpenTK/Math/Matrix3d.cs
index 69310356..21aa8c9e 100644
--- a/Source/OpenTK/Math/Matrix3d.cs
+++ b/Source/OpenTK/Math/Matrix3d.cs
@@ -410,7 +410,7 @@ namespace OpenTK
/// Scale factor for the x axis.
/// Scale factor for the y axis.
/// Scale factor for the z axis.
- /// A scale matrix.
+ /// A scale matrix.
public static void CreateScale(double x, double y, double z, out Matrix3d result)
{
result = Identity;
diff --git a/Source/OpenTK/Math/Matrix4.cs b/Source/OpenTK/Math/Matrix4.cs
index f27de106..a67cf0df 100644
--- a/Source/OpenTK/Math/Matrix4.cs
+++ b/Source/OpenTK/Math/Matrix4.cs
@@ -613,7 +613,7 @@ namespace OpenTK
/// Scale factor for the x axis.
/// Scale factor for the y axis.
/// Scale factor for the z axis.
- /// A scale matrix.
+ /// A scale matrix.
public static void CreateScale(float x, float y, float z, out Matrix4 result)
{
result = Identity;
diff --git a/Source/OpenTK/NativeWindow.cs b/Source/OpenTK/NativeWindow.cs
index 3d67c4bb..38ab3cc6 100644
--- a/Source/OpenTK/NativeWindow.cs
+++ b/Source/OpenTK/NativeWindow.cs
@@ -821,7 +821,7 @@ namespace OpenTK
///
/// Called when a keybord key is released.
///
- /// The for this event.
+ /// The for this event.
protected virtual void OnKeyUp(KeyboardKeyEventArgs e)
{
KeyUp(this, e);