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diff --git a/源代码/.Net/.vs/StgSharp/v17/.suo b/源代码/.Net/.vs/StgSharp/v17/.suo
index f7938eac..d788cb8a 100644
Binary files a/源代码/.Net/.vs/StgSharp/v17/.suo and b/源代码/.Net/.vs/StgSharp/v17/.suo differ
diff --git a/源代码/.Net/StgSharp/Math/ACos.cs b/源代码/.Net/StgSharp/Math/ACos.cs
index 5993110d..1bb31d21 100644
--- a/源代码/.Net/StgSharp/Math/ACos.cs
+++ b/源代码/.Net/StgSharp/Math/ACos.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static unsafe partial class Math
+    public static unsafe partial class Calc
     {
 
 
diff --git a/源代码/.Net/StgSharp/Math/ASin.cs b/源代码/.Net/StgSharp/Math/ASin.cs
index b7b5b464..b9d90dda 100644
--- a/源代码/.Net/StgSharp/Math/ASin.cs
+++ b/源代码/.Net/StgSharp/Math/ASin.cs
@@ -9,9 +9,9 @@ using System.Collections.Generic;
 using System.Text;
 
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static unsafe partial class Math
+    public static unsafe partial class Calc
     {
 
         private const float
diff --git a/源代码/.Net/StgSharp/Math/ATan.cs b/源代码/.Net/StgSharp/Math/ATan.cs
index 4407e164..f8a567dc 100644
--- a/源代码/.Net/StgSharp/Math/ATan.cs
+++ b/源代码/.Net/StgSharp/Math/ATan.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static unsafe partial class Math
+    public static unsafe partial class Calc
     {
         public static unsafe float ATan(float x)
         {
diff --git a/源代码/.Net/StgSharp/Math/BasicOps.cs b/源代码/.Net/StgSharp/Math/BasicOps.cs
index 0cb76e65..f6f2526d 100644
--- a/源代码/.Net/StgSharp/Math/BasicOps.cs
+++ b/源代码/.Net/StgSharp/Math/BasicOps.cs
@@ -8,14 +8,5 @@ namespace StgSharp.Math
 {
     public static unsafe partial class Calc
     {
-        
-        public static unsafe bool Equals<T>(T left,T right) 
-            where T : notnull
-        {
-            if (typeof(T) == typeof(float))
-            {
-                return left.Equals(right);
-            }
-        }
     }
 }
diff --git a/源代码/.Net/StgSharp/Math/Cos.cs b/源代码/.Net/StgSharp/Math/Cos.cs
index 0ea99d07..c0360ecc 100644
--- a/源代码/.Net/StgSharp/Math/Cos.cs
+++ b/源代码/.Net/StgSharp/Math/Cos.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static partial class Math
+    public static partial class Calc
     {
 
         public static float Cos(float x)
diff --git a/源代码/.Net/StgSharp/Math/Exp.cs b/源代码/.Net/StgSharp/Math/Exp.cs
index 340b37e7..1e4323d1 100644
--- a/源代码/.Net/StgSharp/Math/Exp.cs
+++ b/源代码/.Net/StgSharp/Math/Exp.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static unsafe partial class Math
+    public static unsafe partial class Calc
     {
 
         public const float E = 2.718281828f;
diff --git a/源代码/.Net/StgSharp/Math/GetBits32.cs b/源代码/.Net/StgSharp/Math/GetBits32.cs
index edba6467..822d3489 100644
--- a/源代码/.Net/StgSharp/Math/GetBits32.cs
+++ b/源代码/.Net/StgSharp/Math/GetBits32.cs
@@ -2,11 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-
-
-    public static unsafe partial class Math
+    public static unsafe partial class calc
     {
 
         /// <summary>
diff --git a/源代码/.Net/StgSharp/Math/Log.cs b/源代码/.Net/StgSharp/Math/Log.cs
index 5a38f96c..1e5ca743 100644
--- a/源代码/.Net/StgSharp/Math/Log.cs
+++ b/源代码/.Net/StgSharp/Math/Log.cs
@@ -4,12 +4,9 @@ using System.Net.Sockets;
 using System.Text;
 using static System.Net.WebRequestMethods;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-
-
-
-    public static partial class Math
+    public static partial class calc
     {
 
         static private readonly float[] logArray =
diff --git a/源代码/.Net/StgSharp/Math/Pow.cs b/源代码/.Net/StgSharp/Math/Pow.cs
index a88b9159..3790bc63 100644
--- a/源代码/.Net/StgSharp/Math/Pow.cs
+++ b/源代码/.Net/StgSharp/Math/Pow.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 { 
-    public static unsafe partial class Math
+    public static unsafe partial class Calc
     {
         /// <summary>
         /// calculate the value of x^y
diff --git a/源代码/.Net/StgSharp/Math/Sin.cs b/源代码/.Net/StgSharp/Math/Sin.cs
index 24753133..6bbc6b19 100644
--- a/源代码/.Net/StgSharp/Math/Sin.cs
+++ b/源代码/.Net/StgSharp/Math/Sin.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static partial class Math
+    public static partial class Calc
     {
         private static readonly float[] sinData =
             {
diff --git a/源代码/.Net/StgSharp/Math/Sqrt.cs b/源代码/.Net/StgSharp/Math/Sqrt.cs
index 740fa82b..8fcbb310 100644
--- a/源代码/.Net/StgSharp/Math/Sqrt.cs
+++ b/源代码/.Net/StgSharp/Math/Sqrt.cs
@@ -3,9 +3,9 @@ using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static partial class Math
+    public static partial class Calc
     {
         /*本方法将小数部分统一提升至2^16处后进行线性近似
         const uint sqmov = 0b_0100_0111_1000_0000_0000_0000_0000_0000;
diff --git a/源代码/.Net/StgSharp/Math/Tan.cs b/源代码/.Net/StgSharp/Math/Tan.cs
index ccea7a1b..8cefd2b5 100644
--- a/源代码/.Net/StgSharp/Math/Tan.cs
+++ b/源代码/.Net/StgSharp/Math/Tan.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace StgSharp
+namespace StgSharp.Math
 {
-    public static partial class Math
+    public static partial class Calc
     {
 
         public static float Tan(float x)