Convert Degrees To Radians And Radians To Degrees

var degrees = 90;

var radians = degreesToRadians(degrees); 
degrees = radiansToDegrees(radians);

trace(radians); //Outputs 1.57
trace(degrees); //Outputs 90

function degreesToRadians(degrees:Number):Number {
 return degrees * Math.PI / 180;
}

function radiansToDegrees(radians:Number):Number{
 return radians * 180 / Math.PI;
}

Determine Whether Number is Even or Odd

function isEvenOdd(num):String {
  if ((num % 2) == 0) {
   return "even";
  } else {
 return "odd";
  }
}

trace(isEvenOdd(2)); //Outputs even
trace(isEvenOdd(7)); //Outputs odd

Determine Whether Number is a Prime Number

function isPrime(num) {
  for (var i=(num-1); i > 1; i--) {
    if ((num % i) == 0) {
      return false;
    }
  }
  return true;
}

trace(isPrime(2)); //Outputs true
trace(isPrime(4)); //Outputs false
trace(isPrime(17)); //Outputs true

Convert String To Number

var str:String = "10";
var num:Number = Number(str);