Development Class C#

using System;
using System.Collections.Generic;
public static class MathUtil
{
    public static double AnglesDiff(double firstAngle, double secondAngle)
    {
        var difference = secondAngle - firstAngle;
        while (difference < -180) difference += 360;
        while (difference > 180) difference -= 360;
        return difference;
    }
}