diff --git a/Symu examples/SymuExamples/SymuExamples.csproj b/Symu examples/SymuExamples/SymuExamples.csproj
index 10fd62a9..19bc7957 100644
--- a/Symu examples/SymuExamples/SymuExamples.csproj	
+++ b/Symu examples/SymuExamples/SymuExamples.csproj	
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.props" Condition="Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.props')" />
   <Import Project="..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeQuality.Analyzers.3.3.0\build\Microsoft.CodeQuality.Analyzers.props" Condition="Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeQuality.Analyzers.3.3.0\build\Microsoft.CodeQuality.Analyzers.props')" />
   <Import Project="..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.props" Condition="Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.props')" />
   <Import Project="..\packages\Microsoft.CodeQuality.Analyzers.3.0.0\build\Microsoft.CodeQuality.Analyzers.props" Condition="Exists('..\packages\Microsoft.CodeQuality.Analyzers.3.0.0\build\Microsoft.CodeQuality.Analyzers.props')" />
@@ -39,6 +40,9 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="Antlr4.Runtime, Version=4.6.0.0, Culture=neutral, PublicKeyToken=09abb75b9ed49849, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.Runtime.4.6.4\lib\net45\Antlr4.Runtime.dll</HintPath>
+    </Reference>
     <Reference Include="MathNet.Numerics, Version=4.12.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\..\..\..\Symu.Biz\Github\SourceCode\packages\MathNet.Numerics.4.12.0\lib\net461\MathNet.Numerics.dll</HintPath>
     </Reference>
@@ -48,6 +52,10 @@
     <Reference Include="Microsoft.CodeAnalysis.CSharp, Version=3.7.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.CSharp.3.7.0\lib\netstandard2.0\Microsoft.CodeAnalysis.CSharp.dll</HintPath>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="NCalc2, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\Symu.Biz\Github\SourceCode\packages\NCalc2.2.1.0\lib\net46\NCalc2.dll</HintPath>
+    </Reference>
     <Reference Include="Syncfusion.Chart.Base, Version=18.1460.0.42, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\..\..\..\..\..\Program Files (x86)\Syncfusion\Essential Studio\Windows\18.1.0.42\Assemblies\4.6\Syncfusion.Chart.Base.dll</HintPath>
@@ -253,7 +261,10 @@
     <Error Condition="!Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.props'))" />
     <Error Condition="!Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.targets'))" />
     <Error Condition="!Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeQuality.Analyzers.3.3.0\build\Microsoft.CodeQuality.Analyzers.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeQuality.Analyzers.3.3.0\build\Microsoft.CodeQuality.Analyzers.props'))" />
+    <Error Condition="!Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.props'))" />
+    <Error Condition="!Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.targets'))" />
   </Target>
   <Import Project="..\packages\Microsoft.CodeAnalysis.Analyzers.3.0.0\build\Microsoft.CodeAnalysis.Analyzers.targets" Condition="Exists('..\packages\Microsoft.CodeAnalysis.Analyzers.3.0.0\build\Microsoft.CodeAnalysis.Analyzers.targets')" />
   <Import Project="..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.targets" Condition="Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Microsoft.CodeAnalysis.Analyzers.3.3.0\build\Microsoft.CodeAnalysis.Analyzers.targets')" />
+  <Import Project="..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.targets" Condition="Exists('..\..\..\..\Symu.Biz\Github\SourceCode\packages\Antlr4.CodeGenerator.4.6.4\build\Antlr4.CodeGenerator.targets')" />
 </Project>
\ No newline at end of file
diff --git a/Symu examples/SymuExamples/packages.config b/Symu examples/SymuExamples/packages.config
index 6378869b..9ae5d174 100644
--- a/Symu examples/SymuExamples/packages.config	
+++ b/Symu examples/SymuExamples/packages.config	
@@ -1,12 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="Antlr4" version="4.6.4" targetFramework="net48" developmentDependency="true" />
+  <package id="Antlr4.CodeGenerator" version="4.6.4" targetFramework="net48" developmentDependency="true" />
+  <package id="Antlr4.Runtime" version="4.6.4" targetFramework="net48" />
   <package id="MathNet.Numerics" version="4.12.0" targetFramework="net48" />
   <package id="Microsoft.CodeAnalysis.Analyzers" version="3.3.0" targetFramework="net48" developmentDependency="true" />
   <package id="Microsoft.CodeAnalysis.Common" version="3.7.0" targetFramework="net48" />
   <package id="Microsoft.CodeAnalysis.CSharp" version="3.7.0" targetFramework="net48" />
   <package id="Microsoft.CodeQuality.Analyzers" version="3.3.0" targetFramework="net48" developmentDependency="true" />
+  <package id="Microsoft.CSharp" version="4.4.1" targetFramework="net48" />
+  <package id="NCalc2" version="2.1.0" targetFramework="net48" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net48" />
   <package id="System.Collections.Immutable" version="1.7.1" targetFramework="net48" />
+  <package id="System.Dynamic.Runtime" version="4.3.0" targetFramework="net48" />
   <package id="System.Memory" version="4.5.4" targetFramework="net48" />
   <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net48" />
   <package id="System.Reflection.Metadata" version="1.8.1" targetFramework="net48" />