var b1 = new iBeacon();
    var b2 = new iBeacon();
    var b3 = new iBeacon();

    b1.X = 200;
    b1.Y = 100;

    b2.X = 290;
    b2.Y = 520;

    b3.X = 20;
    b3.Y = 1000;

    var curPos = TR.Trilaterate(b1,b2,b3);`