Variabler af typen float og double

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp11
{
    public partial class Form1 : Form
    {
        float minFloatTal = 5.75F;
        double minDoubleTal = 5.75595959;
        public Form1()
        {
            InitializeComponent();
        }

        private void btnKnap_Click(object sender, EventArgs e)
        {
            minDoubleTal = 1.1234567890;
            lblUd1.Text = minDoubleTal.ToString();

            minFloatTal = (float) minDoubleTal;
            lblbUd2.Text = minFloatTal.ToString();
        }
    }
}