diff --git a/Engine.Core/Math.cs b/Engine.Core/Math.cs
index 14ba680..4078693 100644
--- a/Engine.Core/Math.cs
+++ b/Engine.Core/Math.cs
@@ -30,6 +30,16 @@ public static class Math
     /// </summary>
     public const float DegreeToRadian = Pi / 180f;
 
+    /// <inheritdoc cref="Invert{T}(T)" />
+    public static T OneOver<T>(T value) where T : INumber<T> => T.One / value;
+
+    /// <summary>
+    /// Gets 1 / value of given <see cref="T"/>.
+    /// </summary>
+    /// <param name="value">The value <see cref="T"/>.</param>
+    /// <returns>1 / value of given <see cref="T"/>.</returns>
+    public static T Invert<T>(T value) where T : INumber<T> => T.One / value;
+
     /// <summary>
     /// Gets one minus of given <see cref="T"/>.
     /// </summary>
diff --git a/Engine.Core/MathExtensions.cs b/Engine.Core/MathExtensions.cs
index ac67041..6a3a31d 100644
--- a/Engine.Core/MathExtensions.cs
+++ b/Engine.Core/MathExtensions.cs
@@ -8,6 +8,12 @@ public static class MathExtensions
     /// <inheritdoc cref="Math.OneMinus{T}(T)" />
     public static T OneMinus<T>(this T value) where T : INumber<T> => Math.OneMinus(value);
 
+    /// <inheritdoc cref="Math.OneOver{T}(T)" />
+    public static T OneOver<T>(this T value) where T : INumber<T> => Math.OneOver(value);
+
+    /// <inheritdoc cref="Math.Invert{T}(T)" />
+    public static T Invert<T>(this T value) where T : INumber<T> => Math.OneMinus(value);
+
     /// <inheritdoc cref="Math.Add{T}(T, T)" />
     public static T Add<T>(this T left, T value) where T : INumber<T> => Math.Add(left, value);