15.8.2.16 Math.sin(x)

number Math.sin(x:radian|mixed)

Return the sine of x.

Math.sin = function(x){
x = ToNumber(x);
if (isNaN(x)) return NaN;
if (x === +0) return +0;
if (x === -0) return -0;
if (x === +Infinity) return NaN;
if (x === -Infinity) return NaN;
return Math.sin(x);
}