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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def compute_time_at_sun_angle(day, latitude, angle):
 """Compute the floating point time difference between mid-day and an angle. All the prayers are defined as certain angles from mid-day (Zuhr). This formula is taken from praytimes.org/calculation :param day: The day to which to compute for :param longitude: Longitude of the place of interest :angle: The angle at which to compute the time :returns: The floating point time delta between Zuhr and the angle, the sign of the result corresponds to the sign of the angle """

    positive_angle_rad = radians(abs(angle))
    angle_sign = abs(angle)/angle

    latitude_rad = radians(latitude)

    declination = radians(sun_declination(day))

    numerator = -sin(positive_angle_rad) - sin(latitude_rad) * sin(declination)

    denominator = cos(latitude_rad) * cos(declination)

    time_diff = degrees(acos(numerator/denominator)) / 15

    return time_diff * angle_sign