using System;
using System.Data;
using System.Windows.Forms;
 
namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            Console.WriteLine(this.Evaluate("1+3*10/2")); // 16
        }
 
        private decimal Evaluate(string exp)
        {
            var table = new DataTable();
            var column = table.Columns.Add();
            column.Expression = exp;
            var row = table.Rows.Add();
 
            return decimal.Parse(row[0].ToString());
        }
    }
}