/// <summary>
/// Adds two quaternions.
/// </summary>
/// <param name="a">A <see cref="QuaternionD"/> instance.</param>
/// <param name="b">A <see cref="QuaternionD"/> instance.</param>
/// <returns>A new <see cref="QuaternionD"/> instance containing the sum.</returns>
public static QuaternionD operator+(QuaternionD a, QuaternionD b)
{
return(QuaternionD.Add(a, b));
}
/// <summary>
/// Adds two quaternions.
/// </summary>
/// <param name="left">A <see cref="QuaternionD"/> instance.</param>
/// <param name="right">A <see cref="QuaternionD"/> instance.</param>
/// <returns>A new <see cref="QuaternionD"/> instance containing the sum.</returns>
public static QuaternionD operator +(QuaternionD left, QuaternionD right)
{
return(QuaternionD.Add(left, right));
}