CalcAlan

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace Calculadora
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("----------------------------------------------------------");
            Console.WriteLine("----------------------------------------------------------");
            Console.WriteLine("--------------------Elige opción: ------------------------");
            //Elije opcion 1  -> lectura y escritura en fichero y 2 bucle while de compilacion
            Console.WriteLine("Dame tu ecuación matemática: ");


            MatchCollection matches = Regex.Matches("98009", "[1-9]+[0-9]*",RegexOptions.IgnorePatternWhitespace);
            Console.WriteLine("Found {0} matches.", matches.Count);

            Calculadora calc = new Calculadora();
            Console.WriteLine(calc.CadenaAEvaluar(Console.ReadLine()));
        }
    }
}








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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;

namespace Calculadora{

    class Calculadora{

        DataTable dt;

        public Calculadora() {
            dt = new DataTable();

        }

        public String CadenaAEvaluar(String cadenaAEvaluar) {
            var v = dt.Compute(cadenaAEvaluar, "");
            return v.ToString();
        }
    }
}