// Вычисления на уровне термов
        static public bool ExpressionEvaluation( Term root, Term[][] args, ref Store context, ref Term[] result ) {
            
            // Application path and command line arguments
            string ApplicationPath = Path.GetDirectoryName( System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName )
                + "\\plugins\\mapledos.exe";

            string InFile = Path.GetTempFileName();
            string OutFile = Path.GetTempFileName();
            
            string ApplicationArguments = InFile;
            
            MItem expression = SMath.Math.Symbolic.Converter.ToMItem(args[0]);

            SMath.Math.Symbolic.Expansion.Prepare( ref expression );
            
            SMath.Math.Symbolic.Expression.SimplifyEx( expression, context );
            
            string Expr = SMath.Math.Symbolic.Converter.ToString( expression );

            StreamWriter sw = File.CreateText( InFile );
            
            // From long to shot name
            StringBuilder shortPath = new StringBuilder(255);

            GetShortPathName( OutFile, shortPath, shortPath.Capacity );
            
            sw.WriteLine( "interface(quiet=true);" );
            sw.WriteLine( "writeto(`" + shortPath.ToString().Replace( "\\", "\\\\" ) + "`):" );
            sw.WriteLine( "convert(" + Expr.Replace( ",", "." ).Replace( ";", "," ).Replace( "{", "(" ).Replace( "}", ")" ).Replace( '\u2261', '=' ).Replace( '"', '`' ) 
                + ",string);" );
            sw.WriteLine( "quit:" );
            
            sw.Close();
            
            // Create a new process object
            Process ProcessObj = new Process();
            
            // StartInfo contains the startup information of
            // the new process
            ProcessObj.StartInfo.FileName = ApplicationPath;
            ProcessObj.StartInfo.Arguments = ApplicationArguments;

            ProcessObj.StartInfo.WorkingDirectory = Path.GetDirectoryName( System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName )
                + "\\plugins";

            // These two optional flags ensure that no DOS window
            // appears
            ProcessObj.StartInfo.UseShellExecute = false;
            ProcessObj.StartInfo.CreateNoWindow = true;

            // If this option is set the DOS window appears again :-/
            // ProcessObj.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;

            // This ensures that you get the output from the DOS application
            ProcessObj.StartInfo.RedirectStandardOutput = true;
            ProcessObj.StartInfo.RedirectStandardInput = true;

            // Start the process
            ProcessObj.Start();

            // Wait that the process exits
            ProcessObj.WaitForExit();

            if ( File.Exists( InFile ) ) { File.Delete( InFile ); }

            StreamReader sr = new StreamReader( OutFile );

            string OutStr = sr.ReadToEnd().Trim().Replace( ",", ";" ).Replace( ".", "," ).Replace( '`', '"' );
            
            sr.Close();
            
            result = SMath.Math.Symbolic.Converter.ToMItem( OutStr ).ToTerms();
            
            if ( File.Exists( OutFile ) ) { File.Delete( OutFile ); }
            
            return true;
        }