implement ldexp function for convenience

MBS.Framework/MBS.Framework.csproj

@@ -120,6 +120,7 @@
     <Compile Include="UserInterface\VerticalAlignment.cs" />
     <Compile Include="CustomSettingsProvider.cs" />
     <Compile Include="Settings\VersionSetting.cs" />
+    <Compile Include="MathExtensions.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Logic\" />

MBS.Framework/MathExtensions.cs

@@ -0,0 +1,27 @@
+using System;
+namespace MBS.Framework
+{
+	public static class MathExtensions
+	{
+		/// <summary>
+		/// Multiplies a floating point value x by the number 2 raised to the exp power.
+		/// </summary>
+		/// <returns>The ldexp.</returns>
+		/// <param name="x">The x coordinate.</param>
+		/// <param name="exp">Exp.</param>
+		public static float ldexp(float x, int exp)
+		{
+			return (float)(x * Math.Pow(2, exp));
+		}
+		/// <summary>
+		/// Multiplies a floating point value x by the number 2 raised to the exp power.
+		/// </summary>
+		/// <returns>The ldexp.</returns>
+		/// <param name="x">The x coordinate.</param>
+		/// <param name="exp">Exp.</param>
+		public static double ldexp(double x, int exp)
+		{
+			return (x * Math.Pow(2, exp));
+		}
+	}
+}