Why my script work dont work in IE 11?

this script works fine in Chrome, Firefox and Spartan. But dont work in IE 11

tRotationRad=setInterval(RotationRad, 250);

// Get Rotaion of the Wheel

   function getRotationDegrees() {

  var matrix = sym.$("Rad").css("-webkit-transform") ||

    sym.$("Rad").css("-moz-transform")    ||

    sym.$("Rad").css("-ms-transform")     ||

    sym.$("Rad").css("-o-transform")      ||

    sym.$("Rad").css("transform");

    if(typeof matrix === 'string' && matrix !== 'none') {

        var values = matrix.split('(')[1].split(')')[0].split(',');

        var a = values[0];

        var b = values[1];

        var angle = Math.round(Math.atan2(b, a) * (180/Math.PI));

    } else { var angle = 0; }

    return angle;

   }

// Rotaion of the Wheel

   function RotationRad(){

   var your_angle = 45;

   your_angle = getRotationDegrees() + 45;

   sym.$("Rad").css({

   '-ms-transform': 'rotate(' + your_angle + 'deg)',

   '-ms-transform-origin': '50% 50%',

   '-webkit-transform': 'rotate(' + your_angle + 'deg)',

   '-webkit-transform-origin': '50% 50%',

   'transform': 'rotate(' + your_angle + 'deg)',

   'transform-origin': '50% 50%',

   });

   }