/// <summary>
/// sin(n)*r の整数部を返す。n:0-511で一周。(小数部丸めあり)。
/// </summary>
/// <param name="n"></param>
/// <param name="r"></param>
/// <returns></returns>
public int Sin(int n, int r)
{
int l = (int)(Round.RShift((long)Sin(n) * r, 16));
return(l);
}
/// <summary>
/// cos(n)*r の整数部を返す。n:0-511で一周。(小数部丸めあり)。
/// </summary>
/// <param name="n"></param>
/// <param name="r"></param>
/// <returns></returns>
public int Cos(int n, int r)
{
int l = (int)(Round.RShift((long)Cos(n) * r, 16));
return(l);
}